18316922 has 32 divisors (see below), whose sum is σ = 32432400. Its totient is φ = 7676928.

The previous prime is 18316889. The next prime is 18316927. The reversal of 18316922 is 22961381.

It can be written as a sum of positive squares in 8 ways, for example, as 4036081 + 14280841 = 2009^2 + 3779^2 .

It is not an unprimeable number, because it can be changed into a prime (18316927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12104 + ... + 13532.

Almost surely, 2^18316922 is an apocalyptic number.

18316922 is a deficient number, since it is larger than the sum of its proper divisors (14115478).

18316922 is a wasteful number, since it uses less digits than its factorization.

18316922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its digits is 5184, while the sum is 32.

The square root of 18316922 is about 4279.8273329657. The cubic root of 18316922 is about 263.6032934486.

The spelling of 18316922 in words is "eighteen million, three hundred sixteen thousand, nine hundred twenty-two".