18324032 has 28 divisors (see below), whose sum is σ = 36781740. Its totient is φ = 9056256.

The previous prime is 18324023. The next prime is 18324041. The reversal of 18324032 is 23042381.

It is an interprime number because it is at equal distance from previous prime (18324023) and next prime (18324041).

It can be written as a sum of positive squares in 2 ways, for example, as 10394176 + 7929856 = 3224^2 + 2816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18323989 and 18324007.

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, 4088 + ... + 7304.

Almost surely, 2^18324032 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 18324032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18390870).

18324032 is an abundant number, since it is smaller than the sum of its proper divisors (18457708).

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

18324032 is an equidigital number, since it uses as much as digits as its factorization.

18324032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 18324032 is about 4280.6578933617. The cubic root of 18324032 is about 263.6373962846.

The spelling of 18324032 in words is "eighteen million, three hundred twenty-four thousand, thirty-two".