18536036 has 6 divisors (see below), whose sum is σ = 32438070. Its totient is φ = 9268016.

The previous prime is 18535991. The next prime is 18536057. The reversal of 18536036 is 63063581.

It can be written as a sum of positive squares in only one way, i.e., 18113536 + 422500 = 4256^2 + 650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18535993 and 18536011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2317001 + ... + 2317008.

It is an arithmetic number, because the mean of its divisors is an integer number (5406345).

Almost surely, 2^18536036 is an apocalyptic number.

It is an amenable number.

18536036 is a deficient number, since it is larger than the sum of its proper divisors (13902034).

18536036 is a wasteful number, since it uses less digits than its factorization.

18536036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634013 (or 4634011 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 18536036 is about 4305.3496954371. The cubic root of 18536036 is about 264.6502375100.

The spelling of 18536036 in words is "eighteen million, five hundred thirty-six thousand, thirty-six".