13388664 has 16 divisors (see below), whose sum is σ = 33471720. Its totient is φ = 4462880.

The previous prime is 13388659. The next prime is 13388671. The reversal of 13388664 is 46688331.

13388664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 278907 + ... + 278954.

Almost surely, 2^13388664 is an apocalyptic number.

It is an amenable number.

13388664 is an abundant number, since it is smaller than the sum of its proper divisors (20083056).

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

13388664 is a wasteful number, since it uses less digits than its factorization.

13388664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557870 (or 557866 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 13388664 is about 3659.0523363297. The cubic root of 13388664 is about 237.4537764152.

The spelling of 13388664 in words is "thirteen million, three hundred eighty-eight thousand, six hundred sixty-four".