113938638 has 16 divisors (see below), whose sum is σ = 248593536. Its totient is φ = 34526840.

The previous prime is 113938633. The next prime is 113938639. The reversal of 113938638 is 836839311.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113938638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113938633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863106 + ... + 863237.

It is an arithmetic number, because the mean of its divisors is an integer number (15537096).

Almost surely, 2^113938638 is an apocalyptic number.

113938638 is an abundant number, since it is smaller than the sum of its proper divisors (134654898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113938638 is a wasteful number, since it uses less digits than its factorization.

113938638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726359.

The product of its digits is 93312, while the sum is 42.

The square root of 113938638 is about 10674.2043263187. The cubic root of 113938638 is about 484.7937451540.

The spelling of 113938638 in words is "one hundred thirteen million, nine hundred thirty-eight thousand, six hundred thirty-eight".