18046764 has 18 divisors (see below), whose sum is σ = 45618300. Its totient is φ = 6015576.

The previous prime is 18046739. The next prime is 18046783. The reversal of 18046764 is 46764081.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 501299 = 18046764 / (1 + 8 + 0 + 4 + 6 + 7 + 6 + 4).

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 5 ways as a sum of consecutive naturals, for example, 250614 + ... + 250685.

It is an arithmetic number, because the mean of its divisors is an integer number (2534350).

Almost surely, 2^18046764 is an apocalyptic number.

It is an amenable number.

18046764 is an abundant number, since it is smaller than the sum of its proper divisors (27571536).

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

18046764 is a wasteful number, since it uses less digits than its factorization.

18046764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501309 (or 501304 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 18046764 is about 4248.1483024960. The cubic root of 18046764 is about 262.3008993647.

The spelling of 18046764 in words is "eighteen million, forty-six thousand, seven hundred sixty-four".