13890992 has 20 divisors (see below), whose sum is σ = 27178320. Its totient is φ = 6877248.

The previous prime is 13890973. The next prime is 13891037. The reversal of 13890992 is 29909831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (1358916).

Almost surely, 2^13890992 is an apocalyptic number.

It is an amenable number.

13890992 is a deficient number, since it is larger than the sum of its proper divisors (13287328).

13890992 is a wasteful number, since it uses less digits than its factorization.

13890992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540 (or 8534 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 13890992 is about 3727.0621137835. The cubic root of 13890992 is about 240.3870606166.

The spelling of 13890992 in words is "thirteen million, eight hundred ninety thousand, nine hundred ninety-two".