18314536 has 16 divisors (see below), whose sum is σ = 35177940. Its totient is φ = 8933760.

The previous prime is 18314503. The next prime is 18314539. The reversal of 18314536 is 63541381.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 624100 = 4206^2 + 790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18314498 and 18314507.

It is not an unprimeable number, because it can be changed into a prime (18314539) 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, 27591 + ... + 28246.

Almost surely, 2^18314536 is an apocalyptic number.

It is an amenable number.

18314536 is a deficient number, since it is larger than the sum of its proper divisors (16863404).

18314536 is a wasteful number, since it uses less digits than its factorization.

18314536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55884 (or 55880 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 18314536 is about 4279.5485743242. The cubic root of 18314536 is about 263.5918471155.

The spelling of 18314536 in words is "eighteen million, three hundred fourteen thousand, five hundred thirty-six".