18065236 has 12 divisors (see below), whose sum is σ = 36130528. Its totient is φ = 7742232.

The previous prime is 18065227. The next prime is 18065251. The reversal of 18065236 is 63256081.

18065236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18065198 and 18065207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322566 + ... + 322621.

Almost surely, 2^18065236 is an apocalyptic number.

It is an amenable number.

18065236 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.

18065236 is a wasteful number, since it uses less digits than its factorization.

18065236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645198 (or 645196 counting only the distinct ones).

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

The square root of 18065236 is about 4250.3218701647. The cubic root of 18065236 is about 262.3903626802.

The spelling of 18065236 in words is "eighteen million, sixty-five thousand, two hundred thirty-six".