18086912 has 44 divisors (see below), whose sum is σ = 38319840. Its totient is φ = 8503296.

The previous prime is 18086899. The next prime is 18086933. The reversal of 18086912 is 21968081.

It is a congruent number.

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, 16889 + ... + 17927.

Almost surely, 2^18086912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18086912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19159920).

18086912 is an abundant number, since it is smaller than the sum of its proper divisors (20232928).

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

18086912 is a wasteful number, since it uses less digits than its factorization.

18086912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 18086912 is about 4252.8710302571. The cubic root of 18086912 is about 262.4952658254.

The spelling of 18086912 in words is "eighteen million, eighty-six thousand, nine hundred twelve".