18056232 has 96 divisors (see below), whose sum is σ = 52509600. Its totient is φ = 5588352.

The previous prime is 18056221. The next prime is 18056243. The reversal of 18056232 is 23265081.

It is an interprime number because it is at equal distance from previous prime (18056221) and next prime (18056243).

It is a junction number, because it is equal to n+sod(n) for n = 18056196 and 18056205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91558 + ... + 91754.

It is an arithmetic number, because the mean of its divisors is an integer number (546975).

Almost surely, 2^18056232 is an apocalyptic number.

18056232 is a gapful number since it is divisible by the number (12) 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 18056232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26254800).

18056232 is an abundant number, since it is smaller than the sum of its proper divisors (34453368).

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

18056232 is a wasteful number, since it uses less digits than its factorization.

18056232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 18056232 is about 4249.2625242505. The cubic root of 18056232 is about 262.3467622636.

The spelling of 18056232 in words is "eighteen million, fifty-six thousand, two hundred thirty-two".