13268920 has 32 divisors (see below), whose sum is σ = 34120800. Its totient is φ = 4549248.

The previous prime is 13268911. The next prime is 13268971. The reversal of 13268920 is 2986231.

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, 23415 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (1066275).

Almost surely, 2^13268920 is an apocalyptic number.

13268920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13268920 is an abundant number, since it is smaller than the sum of its proper divisors (20851880).

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

13268920 is a wasteful number, since it uses less digits than its factorization.

13268920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47407 (or 47403 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13268920 is about 3642.6528794273. The cubic root of 13268920 is about 236.7437514775.

The spelling of 13268920 in words is "thirteen million, two hundred sixty-eight thousand, nine hundred twenty".