18324912 has 60 divisors (see below), whose sum is σ = 50325896. Its totient is φ = 5744640.

The previous prime is 18324893. The next prime is 18324913. The reversal of 18324912 is 21942381.

It is a self number, because there is not a number n which added to its sum of digits gives 18324912.

It is not an unprimeable number, because it can be changed into a prime (18324913) 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 11 ways as a sum of consecutive naturals, for example, 13212 + ... + 14532.

Almost surely, 2^18324912 is an apocalyptic number.

18324912 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 18324912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25162948).

18324912 is an abundant number, since it is smaller than the sum of its proper divisors (32000984).

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

18324912 is a wasteful number, since it uses less digits than its factorization.

18324912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1343 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 18324912 is about 4280.7606800661. The cubic root of 18324912 is about 263.6416165566.

The spelling of 18324912 in words is "eighteen million, three hundred twenty-four thousand, nine hundred twelve".