13402944 has 42 divisors (see below), whose sum is σ = 38418770. Its totient is φ = 4467456.

The previous prime is 13402937. The next prime is 13402957. The reversal of 13402944 is 44920431.

It can be written as a sum of positive squares in only one way, i.e., 10969344 + 2433600 = 3312^2 + 1560^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11059 + ... + 12210.

Almost surely, 2^13402944 is an apocalyptic number.

It is an amenable number.

13402944 is an abundant number, since it is smaller than the sum of its proper divisors (25015826).

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

13402944 is a wasteful number, since it uses less digits than its factorization.

13402944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23287 (or 23274 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13402944 is about 3661.0031412169. The cubic root of 13402944 is about 237.5381670886.

The spelling of 13402944 in words is "thirteen million, four hundred two thousand, nine hundred forty-four".