13920512 has 18 divisors (see below), whose sum is σ = 27787158. Its totient is φ = 6960128.

The previous prime is 13920509. The next prime is 13920541. The reversal of 13920512 is 21502931.

It can be written as a sum of positive squares in only one way, i.e., 13424896 + 495616 = 3664^2 + 704^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26933 + ... + 27444.

It is an arithmetic number, because the mean of its divisors is an integer number (1543731).

Almost surely, 2^13920512 is an apocalyptic number.

It is an amenable number.

13920512 is a deficient number, since it is larger than the sum of its proper divisors (13866646).

13920512 is an frugal number, since it uses more digits than its factorization.

13920512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54393 (or 54379 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13920512 is about 3731.0202358068. The cubic root of 13920512 is about 240.5572237742.

The spelling of 13920512 in words is "thirteen million, nine hundred twenty thousand, five hundred twelve".