18936316 has 12 divisors (see below), whose sum is σ = 37872688. Its totient is φ = 8115552.

The previous prime is 18936311. The next prime is 18936343. The reversal of 18936316 is 61363981.

18936316 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18936311) by changing a digit.

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, 338121 + ... + 338176.

Almost surely, 2^18936316 is an apocalyptic number.

It is an amenable number.

18936316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18936316 is a wasteful number, since it uses less digits than its factorization.

18936316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676308 (or 676306 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 18936316 is about 4351.5877562104. The cubic root of 18936316 is about 266.5417004749.

The spelling of 18936316 in words is "eighteen million, nine hundred thirty-six thousand, three hundred sixteen".