113620728 has 96 divisors (see below), whose sum is σ = 311612400. Its totient is φ = 34504704.

The previous prime is 113620697. The next prime is 113620733. The reversal of 113620728 is 827026311.

It is a junction number, because it is equal to n+sod(n) for n = 113620695 and 113620704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441976 + ... + 442232.

Almost surely, 2^113620728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113620728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155806200).

113620728 is an abundant number, since it is smaller than the sum of its proper divisors (197991672).

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

113620728 is a wasteful number, since it uses less digits than its factorization.

113620728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 113620728 is about 10659.3024161997. The cubic root of 113620728 is about 484.3424368980.

The spelling of 113620728 in words is "one hundred thirteen million, six hundred twenty thousand, seven hundred twenty-eight".