113888920 has 32 divisors (see below), whose sum is σ = 256896720. Its totient is φ = 45440640.

The previous prime is 113888917. The next prime is 113888927. The reversal of 113888920 is 29888311.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113888927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13459 + ... + 20221.

Almost surely, 2^113888920 is an apocalyptic number.

113888920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113888920 is an abundant number, since it is smaller than the sum of its proper divisors (143007800).

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

113888920 is a wasteful number, since it uses less digits than its factorization.

113888920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195 (or 7191 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 113888920 is about 10671.8751866764. The cubic root of 113888920 is about 484.7232204033.

The spelling of 113888920 in words is "one hundred thirteen million, eight hundred eighty-eight thousand, nine hundred twenty".