18885804 has 24 divisors (see below), whose sum is σ = 50362368. Its totient is φ = 5395920.

The previous prime is 18885781. The next prime is 18885833. The reversal of 18885804 is 40858881.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 112332 + ... + 112499.

It is an arithmetic number, because the mean of its divisors is an integer number (2098432).

Almost surely, 2^18885804 is an apocalyptic number.

18885804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18885804 is an abundant number, since it is smaller than the sum of its proper divisors (31476564).

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

18885804 is a wasteful number, since it uses less digits than its factorization.

18885804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224845 (or 224843 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 42.

The square root of 18885804 is about 4345.7800220444. The cubic root of 18885804 is about 266.3044923621.

The spelling of 18885804 in words is "eighteen million, eight hundred eighty-five thousand, eight hundred four".