13520804 has 24 divisors (see below), whose sum is σ = 26012448. Its totient is φ = 6098240.

The previous prime is 13520779. The next prime is 13520807. The reversal of 13520804 is 40802531.

It is a self number, because there is not a number n which added to its sum of digits gives 13520804.

It is not an unprimeable number, because it can be changed into a prime (13520807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907 + ... + 7149.

It is an arithmetic number, because the mean of its divisors is an integer number (1083852).

Almost surely, 2^13520804 is an apocalyptic number.

It is an amenable number.

13520804 is a deficient number, since it is larger than the sum of its proper divisors (12491644).

13520804 is a wasteful number, since it uses less digits than its factorization.

13520804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 13520804 is about 3677.0645901316. The cubic root of 13520804 is about 238.2324072104.

The spelling of 13520804 in words is "thirteen million, five hundred twenty thousand, eight hundred four".