13223992 has 16 divisors (see below), whose sum is σ = 24834600. Its totient is φ = 6601440.

The previous prime is 13223957. The next prime is 13224037. The reversal of 13223992 is 29932231.

It is a happy number.

It is a congruent number.

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, 7359 + ... + 8977.

Almost surely, 2^13223992 is an apocalyptic number.

It is an amenable number.

13223992 is a deficient number, since it is larger than the sum of its proper divisors (11610608).

13223992 is a wasteful number, since it uses less digits than its factorization.

13223992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2642 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 13223992 is about 3636.4807162970. The cubic root of 13223992 is about 236.4762478996.

The spelling of 13223992 in words is "thirteen million, two hundred twenty-three thousand, nine hundred ninety-two".