13904400 has 60 divisors (see below), whose sum is σ = 44544272. Its totient is φ = 3707520.

The previous prime is 13904393. The next prime is 13904413. The reversal of 13904400 is 440931.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4594 + ... + 6993.

Almost surely, 2^13904400 is an apocalyptic number.

13904400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13904400 is an abundant number, since it is smaller than the sum of its proper divisors (30639872).

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

13904400 is a wasteful number, since it uses less digits than its factorization.

13904400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11608 (or 11597 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13904400 is about 3728.8604157303. The cubic root of 13904400 is about 240.4643786668.

The spelling of 13904400 in words is "thirteen million, nine hundred four thousand, four hundred".