13992920 has 32 divisors (see below), whose sum is σ = 31605120. Its totient is φ = 5575680.

The previous prime is 13992907. The next prime is 13992941. The reversal of 13992920 is 2929931.

13992920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 13625 + ... + 14615.

It is an arithmetic number, because the mean of its divisors is an integer number (987660).

Almost surely, 2^13992920 is an apocalyptic number.

13992920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13992920 is an abundant number, since it is smaller than the sum of its proper divisors (17612200).

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

13992920 is a wasteful number, since it uses less digits than its factorization.

13992920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13992920 is about 3740.7111623326. The cubic root of 13992920 is about 240.9735914544.

The spelling of 13992920 in words is "thirteen million, nine hundred ninety-two thousand, nine hundred twenty".