113680836 has 36 divisors (see below), whose sum is σ = 304265052. Its totient is φ = 35664384.

The previous prime is 113680829. The next prime is 113680837. The reversal of 113680836 is 638086311.

It can be written as a sum of positive squares in 2 ways, for example, as 34292736 + 79388100 = 5856^2 + 8910^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 113680836.

It is not an unprimeable number, because it can be changed into a prime (113680837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92265 + ... + 93488.

It is an arithmetic number, because the mean of its divisors is an integer number (8451807).

Almost surely, 2^113680836 is an apocalyptic number.

It is an amenable number.

113680836 is an abundant number, since it is smaller than the sum of its proper divisors (190584216).

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

113680836 is a wasteful number, since it uses less digits than its factorization.

113680836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185780 (or 185775 counting only the distinct ones).

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

The square root of 113680836 is about 10662.1215524866. The cubic root of 113680836 is about 484.4278313016.

The spelling of 113680836 in words is "one hundred thirteen million, six hundred eighty thousand, eight hundred thirty-six".