18324936 has 96 divisors (see below), whose sum is σ = 57432960. Its totient is φ = 5170176.

The previous prime is 18324931. The next prime is 18324941. The reversal of 18324936 is 63942381.

It is an interprime number because it is at equal distance from previous prime (18324931) and next prime (18324941).

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 18324936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51736 + ... + 52088.

It is an arithmetic number, because the mean of its divisors is an integer number (598260).

Almost surely, 2^18324936 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 18324936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28716480).

18324936 is an abundant number, since it is smaller than the sum of its proper divisors (39108024).

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

18324936 is a wasteful number, since it uses less digits than its factorization.

18324936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 468 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 18324936 is about 4280.7634833053. The cubic root of 18324936 is about 263.6417316530.

The spelling of 18324936 in words is "eighteen million, three hundred twenty-four thousand, nine hundred thirty-six".