18326364 has 24 divisors (see below), whose sum is σ = 48870528. Its totient is φ = 5236080.

The previous prime is 18326351. The next prime is 18326387. The reversal of 18326364 is 46362381.

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 7 ways as a sum of consecutive naturals, for example, 109002 + ... + 109169.

It is an arithmetic number, because the mean of its divisors is an integer number (2036272).

Almost surely, 2^18326364 is an apocalyptic number.

18326364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18326364 is an abundant number, since it is smaller than the sum of its proper divisors (30544164).

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

18326364 is a wasteful number, since it uses less digits than its factorization.

18326364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218185 (or 218183 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 18326364 is about 4280.9302727328. The cubic root of 18326364 is about 263.6485797099.

The spelling of 18326364 in words is "eighteen million, three hundred twenty-six thousand, three hundred sixty-four".