18232832 has 40 divisors (see below), whose sum is σ = 36828000. Its totient is φ = 9017344.

The previous prime is 18232831. The next prime is 18232843. The reversal of 18232832 is 23823281.

It is a junction number, because it is equal to n+sod(n) for n = 18232795 and 18232804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18232831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76169 + ... + 76407.

It is an arithmetic number, because the mean of its divisors is an integer number (920700).

Almost surely, 2^18232832 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 18232832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18414000).

18232832 is an abundant number, since it is smaller than the sum of its proper divisors (18595168).

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

18232832 is an equidigital number, since it uses as much as digits as its factorization.

18232832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 390 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 18232832 is about 4269.9920374633. The cubic root of 18232832 is about 263.1992880066.

The spelling of 18232832 in words is "eighteen million, two hundred thirty-two thousand, eight hundred thirty-two".