113381436 has 72 divisors (see below), whose sum is σ = 319186560. Its totient is φ = 30681504.

The previous prime is 113381423. The next prime is 113381447. The reversal of 113381436 is 634183311.

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, 28455 + ... + 32193.

Almost surely, 2^113381436 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 113381436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159593280).

113381436 is an abundant number, since it is smaller than the sum of its proper divisors (205805124).

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

113381436 is a wasteful number, since it uses less digits than its factorization.

113381436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791 (or 3770 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 113381436 is about 10648.0719381492. The cubic root of 113381436 is about 484.0021799415.

The spelling of 113381436 in words is "one hundred thirteen million, three hundred eighty-one thousand, four hundred thirty-six".