113439436 has 54 divisors (see below), whose sum is σ = 232083404. Its totient is φ = 48470400.

The previous prime is 113439421. The next prime is 113439439. The reversal of 113439436 is 634934311.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (113439439) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 139471 + ... + 140281.

Almost surely, 2^113439436 is an apocalyptic number.

It is an amenable number.

113439436 is an abundant number, since it is smaller than the sum of its proper divisors (118643968).

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

113439436 is a wasteful number, since it uses less digits than its factorization.

113439436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 841 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 113439436 is about 10650.7950876918. The cubic root of 113439436 is about 484.0846959219.

The spelling of 113439436 in words is "one hundred thirteen million, four hundred thirty-nine thousand, four hundred thirty-six".