18038932 has 12 divisors (see below), whose sum is σ = 31600800. Its totient is φ = 9010136.

The previous prime is 18038897. The next prime is 18038947. The reversal of 18038932 is 23983081.

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, 3819 + ... + 7117.

It is an arithmetic number, because the mean of its divisors is an integer number (2633400).

Almost surely, 2^18038932 is an apocalyptic number.

It is an amenable number.

18038932 is a deficient number, since it is larger than the sum of its proper divisors (13561868).

18038932 is a wasteful number, since it uses less digits than its factorization.

18038932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670 (or 4668 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 18038932 is about 4247.2263890685. The cubic root of 18038932 is about 262.2629491095.

The spelling of 18038932 in words is "eighteen million, thirty-eight thousand, nine hundred thirty-two".