18324090 has 32 divisors (see below), whose sum is σ = 48864960. Its totient is φ = 4886352.

The previous prime is 18324083. The next prime is 18324101. The reversal of 18324090 is 9042381.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33664 + ... + 34203.

It is an arithmetic number, because the mean of its divisors is an integer number (1527030).

Almost surely, 2^18324090 is an apocalyptic number.

18324090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18324090 is an abundant number, since it is smaller than the sum of its proper divisors (30540870).

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

18324090 is a wasteful number, since it uses less digits than its factorization.

18324090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67883 (or 67877 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 18324090 is about 4280.6646680159. The cubic root of 18324090 is about 263.6376744431.

The spelling of 18324090 in words is "eighteen million, three hundred twenty-four thousand, ninety".