18256112 has 80 divisors (see below), whose sum is σ = 44520960. Its totient is φ = 7070976.

The previous prime is 18256097. The next prime is 18256153. The reversal of 18256112 is 21165281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48758 + ... + 49130.

It is an arithmetic number, because the mean of its divisors is an integer number (556512).

Almost surely, 2^18256112 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 18256112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22260480).

18256112 is an abundant number, since it is smaller than the sum of its proper divisors (26264848).

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

18256112 is a wasteful number, since it uses less digits than its factorization.

18256112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 424 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 18256112 is about 4272.7171682666. The cubic root of 18256112 is about 263.3112595217.

The spelling of 18256112 in words is "eighteen million, two hundred fifty-six thousand, one hundred twelve".