13390904 has 16 divisors (see below), whose sum is σ = 25230120. Its totient is φ = 6662880.

The previous prime is 13390873. The next prime is 13390907. The reversal of 13390904 is 40909331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13390907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279 + ... + 5654.

Almost surely, 2^13390904 is an apocalyptic number.

It is an amenable number.

13390904 is a deficient number, since it is larger than the sum of its proper divisors (11839216).

13390904 is a wasteful number, since it uses less digits than its factorization.

13390904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150 (or 8146 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13390904 is about 3659.3584137113. The cubic root of 13390904 is about 237.4670181347.

The spelling of 13390904 in words is "thirteen million, three hundred ninety thousand, nine hundred four".