18748492 has 24 divisors (see below), whose sum is σ = 38512544. Its totient is φ = 7817472.

The previous prime is 18748487. The next prime is 18748507. The reversal of 18748492 is 29484781.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8013 + ... + 10084.

Almost surely, 2^18748492 is an apocalyptic number.

It is an amenable number.

18748492 is an abundant number, since it is smaller than the sum of its proper divisors (19764052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18748492 is a wasteful number, since it uses less digits than its factorization.

18748492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18145 (or 18143 counting only the distinct ones).

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

The square root of 18748492 is about 4329.9528865797. The cubic root of 18748492 is about 265.6575199308.

The spelling of 18748492 in words is "eighteen million, seven hundred forty-eight thousand, four hundred ninety-two".