18304168 has 16 divisors (see below), whose sum is σ = 34512660. Its totient is φ = 9100800.

The previous prime is 18304151. The next prime is 18304177. The reversal of 18304168 is 86140381.

It can be written as a sum of positive squares in 2 ways, for example, as 10227204 + 8076964 = 3198^2 + 2842^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4873 + ... + 7768.

Almost surely, 2^18304168 is an apocalyptic number.

It is an amenable number.

18304168 is a deficient number, since it is larger than the sum of its proper divisors (16208492).

18304168 is a wasteful number, since it uses less digits than its factorization.

18304168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828 (or 12824 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 18304168 is about 4278.3370601204. The cubic root of 18304168 is about 263.5420972676.

The spelling of 18304168 in words is "eighteen million, three hundred four thousand, one hundred sixty-eight".