18316036 has 12 divisors (see below), whose sum is σ = 32919628. Its totient is φ = 8910432.

The previous prime is 18316031. The next prime is 18316061. The reversal of 18316036 is 63061381.

It can be written as a sum of positive squares in 2 ways, for example, as 15054400 + 3261636 = 3880^2 + 1806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18315995 and 18316013.

It is not an unprimeable number, because it can be changed into a prime (18316031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61731 + ... + 62026.

Almost surely, 2^18316036 is an apocalyptic number.

It is an amenable number.

18316036 is a deficient number, since it is larger than the sum of its proper divisors (14603592).

18316036 is a wasteful number, since it uses less digits than its factorization.

18316036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123798 (or 123796 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 18316036 is about 4279.7238228652. The cubic root of 18316036 is about 263.5990431660.

The spelling of 18316036 in words is "eighteen million, three hundred sixteen thousand, thirty-six".