13520944 has 20 divisors (see below), whose sum is σ = 26348760. Its totient is φ = 6721280.

The previous prime is 13520921. The next prime is 13520953. The reversal of 13520944 is 44902531.

It is a super-2 number, since 2×13520944² = 365631853302272, which contains 22 as substring.

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, 504 + ... + 5224.

It is an arithmetic number, because the mean of its divisors is an integer number (1317438).

Almost surely, 2^13520944 is an apocalyptic number.

It is an amenable number.

13520944 is a deficient number, since it is larger than the sum of its proper divisors (12827816).

13520944 is a wasteful number, since it uses less digits than its factorization.

13520944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908 (or 4902 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13520944 is about 3677.0836270066. The cubic root of 13520944 is about 238.2332294599.

The spelling of 13520944 in words is "thirteen million, five hundred twenty thousand, nine hundred forty-four".