13393520 has 40 divisors (see below), whose sum is σ = 35589984. Its totient is φ = 4591872.

The previous prime is 13393517. The next prime is 13393559. The reversal of 13393520 is 2539331.

13393520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 13393520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11399 + ... + 12518.

Almost surely, 2^13393520 is an apocalyptic number.

13393520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13393520 is an abundant number, since it is smaller than the sum of its proper divisors (22196464).

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

13393520 is a wasteful number, since it uses less digits than its factorization.

13393520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23937 (or 23931 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 13393520 is about 3659.7158359632. The cubic root of 13393520 is about 237.4824807022.

The spelling of 13393520 in words is "thirteen million, three hundred ninety-three thousand, five hundred twenty".