18668882 has 16 divisors (see below), whose sum is σ = 29320704. Its totient is φ = 8904000.

The previous prime is 18668861. The next prime is 18668921. The reversal of 18668882 is 28886681.

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, 2282 + ... + 6522.

It is an arithmetic number, because the mean of its divisors is an integer number (1832544).

Almost surely, 2^18668882 is an apocalyptic number.

18668882 is a deficient number, since it is larger than the sum of its proper divisors (10651822).

18668882 is a wasteful number, since it uses less digits than its factorization.

18668882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345.

The product of its digits is 294912, while the sum is 47.

The square root of 18668882 is about 4320.7501663484. The cubic root of 18668882 is about 265.2809740852.

The spelling of 18668882 in words is "eighteen million, six hundred sixty-eight thousand, eight hundred eighty-two".