18047792 has 20 divisors (see below), whose sum is σ = 39963216. Its totient is φ = 7734720.

The previous prime is 18047779. The next prime is 18047803. The reversal of 18047792 is 29774081.

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, 80459 + ... + 80682.

Almost surely, 2^18047792 is an apocalyptic number.

It is an amenable number.

18047792 is an abundant number, since it is smaller than the sum of its proper divisors (21915424).

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

18047792 is a wasteful number, since it uses less digits than its factorization.

18047792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161156 (or 161150 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 18047792 is about 4248.2692946658. The cubic root of 18047792 is about 262.3058797628.

The spelling of 18047792 in words is "eighteen million, forty-seven thousand, seven hundred ninety-two".