113980644 has 18 divisors (see below), whose sum is σ = 288117830. Its totient is φ = 37993536.

The previous prime is 113980619. The next prime is 113980651. The reversal of 113980644 is 446089311.

113980644 is a `hidden beast` number, since 1 + 1 + 3 + 9 + 8 + 0 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109620900 + 4359744 = 10470^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3166129 = 113980644 / (1 + 1 + 3 + 9 + 8 + 0 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 113980599 and 113980608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1583029 + ... + 1583100.

Almost surely, 2^113980644 is an apocalyptic number.

It is an amenable number.

113980644 is an abundant number, since it is smaller than the sum of its proper divisors (174137186).

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

113980644 is a wasteful number, since it uses less digits than its factorization.

113980644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166139 (or 3166134 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 113980644 is about 10676.1717858041. The cubic root of 113980644 is about 484.8533144811.

The spelling of 113980644 in words is "one hundred thirteen million, nine hundred eighty thousand, six hundred forty-four".