18984268 has 18 divisors (see below), whose sum is σ = 35065716. Its totient is φ = 8991864.

The previous prime is 18984233. The next prime is 18984281. The reversal of 18984268 is 86248981.

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 5 ways as a sum of consecutive naturals, for example, 5130 + ... + 8017.

Almost surely, 2^18984268 is an apocalyptic number.

It is an amenable number.

18984268 is a deficient number, since it is larger than the sum of its proper divisors (16081448).

18984268 is a wasteful number, since it uses less digits than its factorization.

18984268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189 (or 13168 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The square root of 18984268 is about 4357.0939856744. The cubic root of 18984268 is about 266.7664966505.

The spelling of 18984268 in words is "eighteen million, nine hundred eighty-four thousand, two hundred sixty-eight".