18046668 has 24 divisors (see below), whose sum is σ = 42357168. Its totient is φ = 5980096.

The previous prime is 18046661. The next prime is 18046669. The reversal of 18046668 is 86664081.

It is not an unprimeable number, because it can be changed into a prime (18046661) by changing a digit.

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, 2271 + ... + 6422.

It is an arithmetic number, because the mean of its divisors is an integer number (1764882).

Almost surely, 2^18046668 is an apocalyptic number.

It is an amenable number.

18046668 is an abundant number, since it is smaller than the sum of its proper divisors (24310500).

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

18046668 is a wasteful number, since it uses less digits than its factorization.

18046668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873 (or 8871 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 18046668 is about 4248.1370034404. The cubic root of 18046668 is about 262.3004342595.

The spelling of 18046668 in words is "eighteen million, forty-six thousand, six hundred sixty-eight".