18086832 has 120 divisors (see below), whose sum is σ = 54472704. Its totient is φ = 5588352.

The previous prime is 18086771. The next prime is 18086837. The reversal of 18086832 is 23868081.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18086837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142353 + ... + 142479.

Almost surely, 2^18086832 is an apocalyptic number.

18086832 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 18086832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27236352).

18086832 is an abundant number, since it is smaller than the sum of its proper divisors (36385872).

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

18086832 is a wasteful number, since it uses less digits than its factorization.

18086832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18086832 is about 4252.8616248357. The cubic root of 18086832 is about 262.4948788117.

The spelling of 18086832 in words is "eighteen million, eighty-six thousand, eight hundred thirty-two".