13920584 has 32 divisors (see below), whose sum is σ = 27086400. Its totient is φ = 6701760.

The previous prime is 13920541. The next prime is 13920587. The reversal of 13920584 is 48502931.

It is a self number, because there is not a number n which added to its sum of digits gives 13920584.

It is not an unprimeable number, because it can be changed into a prime (13920587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38597 + ... + 38955.

It is an arithmetic number, because the mean of its divisors is an integer number (846450).

Almost surely, 2^13920584 is an apocalyptic number.

It is an amenable number.

13920584 is a deficient number, since it is larger than the sum of its proper divisors (13165816).

13920584 is a wasteful number, since it uses less digits than its factorization.

13920584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 13920584 is about 3731.0298846297. The cubic root of 13920584 is about 240.5576385121.

The spelling of 13920584 in words is "thirteen million, nine hundred twenty thousand, five hundred eighty-four".