18974248 has 16 divisors (see below), whose sum is σ = 35923680. Its totient is φ = 9394608.

The previous prime is 18974243. The next prime is 18974251. The reversal of 18974248 is 84247981.

It is not an unprimeable number, because it can be changed into a prime (18974243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10690 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (2245230).

Almost surely, 2^18974248 is an apocalyptic number.

It is an amenable number.

18974248 is a deficient number, since it is larger than the sum of its proper divisors (16949432).

18974248 is a wasteful number, since it uses less digits than its factorization.

18974248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23136 (or 23132 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 18974248 is about 4355.9439849475. The cubic root of 18974248 is about 266.7195547878.

The spelling of 18974248 in words is "eighteen million, nine hundred seventy-four thousand, two hundred forty-eight".