438

438 is an even composite number composed of three prime numbers multiplied together.

What does the number 438 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

438 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 438:

2 × 3 × 73

See below for interesting mathematical facts about the number 438 from the Numbermatics database.


Names of 438

  • Cardinal: 438 can be written as Four hundred thirty-eight.

Scientific notation

  • Scientific notation: 4.38 × 102

Factors of 438

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 78

Divisors of 438

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 888
  • Sum of proper divisors (its aliquot sum) s(n): 450
  • 438 is an abundant number, because the sum of its proper divisors (450) is greater than itself. Its abundance is 12

Bases of 438

  • Binary: 1101101102
  • Hexadecimal: 0x1B6
  • Base-36: C6

Squares and roots of 438

  • 438 squared (4382) is 191844
  • 438 cubed (4383) is 84027672
  • The square root of 438 is 20.9284495365
  • The cube root of 438 is 7.5943633181

Scales and comparisons

How big is 438?
  • 438 seconds is equal to 7 minutes, 18 seconds.
  • To count from 1 to 438 would take you about three minutes.

    This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 438 cubic inches would be around 0.6 feet tall.

Recreational maths with 438

  • 438 backwards is 834
  • The number of decimal digits it has is: 3
  • The sum of 438's digits is 15
  • More coming soon!

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The information we have on file for 438 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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