113640944 has 30 divisors (see below), whose sum is σ = 223080216. Its totient is φ = 56081440.

The previous prime is 113640941. The next prime is 113640983. The reversal of 113640944 is 449046311.

It is a happy number.

It is a super-2 number, since 2×113640944² = 25828528306422272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113640944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113640941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109709 + ... + 110739.

Almost surely, 2^113640944 is an apocalyptic number.

It is an amenable number.

113640944 is a deficient number, since it is larger than the sum of its proper divisors (109439272).

113640944 is an equidigital number, since it uses as much as digits as its factorization.

113640944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 113640944 is about 10660.2506537135. The cubic root of 113640944 is about 484.3711607826.

The spelling of 113640944 in words is "one hundred thirteen million, six hundred forty thousand, nine hundred forty-four".