18922996 has 12 divisors (see below), whose sum is σ = 33319552. Its totient is φ = 9403128.

The previous prime is 18922931. The next prime is 18923039. The reversal of 18922996 is 69922981.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13860 + ... + 15163.

Almost surely, 2^18922996 is an apocalyptic number.

It is an amenable number.

18922996 is a deficient number, since it is larger than the sum of its proper divisors (14396556).

18922996 is a wasteful number, since it uses less digits than its factorization.

18922996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29190 (or 29188 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 18922996 is about 4350.0570111207. The cubic root of 18922996 is about 266.4791897552.

The spelling of 18922996 in words is "eighteen million, nine hundred twenty-two thousand, nine hundred ninety-six".