18930232 has 16 divisors (see below), whose sum is σ = 37362600. Its totient is φ = 8966880.

The previous prime is 18930203. The next prime is 18930253. The reversal of 18930232 is 23203981.

It is a self number, because there is not a number n which added to its sum of digits gives 18930232.

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, 62119 + ... + 62422.

Almost surely, 2^18930232 is an apocalyptic number.

It is an amenable number.

18930232 is a deficient number, since it is larger than the sum of its proper divisors (18432368).

18930232 is a wasteful number, since it uses less digits than its factorization.

18930232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124566 (or 124562 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 18930232 is about 4350.8886448633. Note that the first 3 decimals coincide. The cubic root of 18930232 is about 266.5131519193.

The spelling of 18930232 in words is "eighteen million, nine hundred thirty thousand, two hundred thirty-two".