18324474 has 32 divisors (see below), whose sum is σ = 44090880. Its totient is φ = 4959792.

The previous prime is 18324473. The next prime is 18324479. The reversal of 18324474 is 47442381.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18324473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684 + ... + 12279.

It is an arithmetic number, because the mean of its divisors is an integer number (1377840).

Almost surely, 2^18324474 is an apocalyptic number.

18324474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18324474 is an abundant number, since it is smaller than the sum of its proper divisors (25766406).

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

18324474 is a wasteful number, since it uses less digits than its factorization.

18324474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22994.

The product of its digits is 21504, while the sum is 33.

The square root of 18324474 is about 4280.7095206286. The cubic root of 18324474 is about 263.6395160290.

The spelling of 18324474 in words is "eighteen million, three hundred twenty-four thousand, four hundred seventy-four".