18485992 has 32 divisors (see below), whose sum is σ = 40982400. Its totient is φ = 7648704.

The previous prime is 18485981. The next prime is 18486011. The reversal of 18485992 is 29958481.

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, 4068 + ... + 7315.

It is an arithmetic number, because the mean of its divisors is an integer number (1280700).

Almost surely, 2^18485992 is an apocalyptic number.

It is an amenable number.

18485992 is an abundant number, since it is smaller than the sum of its proper divisors (22496408).

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

18485992 is a wasteful number, since it uses less digits than its factorization.

18485992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425 (or 11421 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 18485992 is about 4299.5339282299. The cubic root of 18485992 is about 264.4118533278.

The spelling of 18485992 in words is "eighteen million, four hundred eighty-five thousand, nine hundred ninety-two".