18884768 has 24 divisors (see below), whose sum is σ = 42491232. Its totient is φ = 8093376.

The previous prime is 18884759. The next prime is 18884791. The reversal of 18884768 is 86748881.

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, 41930 + ... + 42377.

It is an arithmetic number, because the mean of its divisors is an integer number (1770468).

Almost surely, 2^18884768 is an apocalyptic number.

It is an amenable number.

18884768 is an abundant number, since it is smaller than the sum of its proper divisors (23606464).

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

18884768 is an equidigital number, since it uses as much as digits as its factorization.

18884768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84324 (or 84316 counting only the distinct ones).

The product of its digits is 688128, while the sum is 50.

The square root of 18884768 is about 4345.6608243166. The cubic root of 18884768 is about 266.2996228051.

The spelling of 18884768 in words is "eighteen million, eight hundred eighty-four thousand, seven hundred sixty-eight".