13439568 has 20 divisors (see below), whose sum is σ = 34719008. Its totient is φ = 4479840.

The previous prime is 13439527. The next prime is 13439633. The reversal of 13439568 is 86593431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139948 + ... + 140043.

Almost surely, 2^13439568 is an apocalyptic number.

It is an amenable number.

13439568 is an abundant number, since it is smaller than the sum of its proper divisors (21279440).

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

13439568 is a wasteful number, since it uses less digits than its factorization.

13439568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280002 (or 279996 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 13439568 is about 3666.0016366608. The cubic root of 13439568 is about 237.7543306881.

The spelling of 13439568 in words is "thirteen million, four hundred thirty-nine thousand, five hundred sixty-eight".