18324252 has 48 divisors (see below), whose sum is σ = 47738880. Its totient is φ = 6078384.

The previous prime is 18324239. The next prime is 18324277. The reversal of 18324252 is 25242381.

It is a super-2 number, since 2×18324252² = 671556422719008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41143 + ... + 41585.

It is an arithmetic number, because the mean of its divisors is an integer number (994560).

Almost surely, 2^18324252 is an apocalyptic number.

18324252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18324252 is an abundant number, since it is smaller than the sum of its proper divisors (29414628).

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

18324252 is a wasteful number, since it uses less digits than its factorization.

18324252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 831 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 18324252 is about 4280.6835902692. The cubic root of 18324252 is about 263.6384513653.

It can be divided in two parts, 1832 and 4252, that added together give a square (6084 = 78²).

The spelling of 18324252 in words is "eighteen million, three hundred twenty-four thousand, two hundred fifty-two".