18084864 has 132 divisors (see below), whose sum is σ = 57053984. Its totient is φ = 4988928.

The previous prime is 18084851. The next prime is 18084919. The reversal of 18084864 is 46848081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623602 + ... + 623630.

Almost surely, 2^18084864 is an apocalyptic number.

18084864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18084864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28526992).

18084864 is an abundant number, since it is smaller than the sum of its proper divisors (38969120).

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

18084864 is an equidigital number, since it uses as much as digits as its factorization.

18084864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 18084864 is about 4252.6302449190. The cubic root of 18084864 is about 262.4853579134.

The spelling of 18084864 in words is "eighteen million, eighty-four thousand, eight hundred sixty-four".