113921040 has 40 divisors (see below), whose sum is σ = 353155968. Its totient is φ = 30378880.

The previous prime is 113921021. The next prime is 113921057. The reversal of 113921040 is 40129311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 113920998 and 113921016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237096 + ... + 237575.

Almost surely, 2^113921040 is an apocalyptic number.

113921040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113921040 is an abundant number, since it is smaller than the sum of its proper divisors (239234928).

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

113921040 is a wasteful number, since it uses less digits than its factorization.

113921040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474687 (or 474681 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 113921040 is about 10673.3799707497. The cubic root of 113921040 is about 484.7687848193.

The spelling of 113921040 in words is "one hundred thirteen million, nine hundred twenty-one thousand, forty".