18850880 has 28 divisors (see below), whose sum is σ = 44889420. Its totient is φ = 7540224.

The previous prime is 18850879. The next prime is 18850903. The reversal of 18850880 is 8805881.

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 16516096 = 1528^2 + 4064^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 29135 + ... + 29774.

Almost surely, 2^18850880 is an apocalyptic number.

18850880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18850880 is an abundant number, since it is smaller than the sum of its proper divisors (26038540).

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

18850880 is an equidigital number, since it uses as much as digits as its factorization.

18850880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58926 (or 58916 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 38.

The square root of 18850880 is about 4341.7600117925. The cubic root of 18850880 is about 266.1402392397.

The spelling of 18850880 in words is "eighteen million, eight hundred fifty thousand, eight hundred eighty".