18790072 has 32 divisors (see below), whose sum is σ = 40410720. Its totient is φ = 8023680.

The previous prime is 18790063. The next prime is 18790073. The reversal of 18790072 is 27009781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18790073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23178 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (1262835).

Almost surely, 2^18790072 is an apocalyptic number.

It is an amenable number.

18790072 is an abundant number, since it is smaller than the sum of its proper divisors (21620648).

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

18790072 is a wasteful number, since it uses less digits than its factorization.

18790072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 18790072 is about 4334.7516653206. The cubic root of 18790072 is about 265.8537647601.

The spelling of 18790072 in words is "eighteen million, seven hundred ninety thousand, seventy-two".