18365036 has 12 divisors (see below), whose sum is σ = 32255160. Its totient is φ = 9149280.

The previous prime is 18365029. The next prime is 18365041. The reversal of 18365036 is 63056381.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 18364993 and 18365011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7046 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (2687930).

Almost surely, 2^18365036 is an apocalyptic number.

It is an amenable number.

18365036 is a deficient number, since it is larger than the sum of its proper divisors (13890124).

18365036 is a wasteful number, since it uses less digits than its factorization.

18365036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16624 (or 16622 counting only the distinct ones).

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

The square root of 18365036 is about 4285.4446677095. Note that the first 3 decimals coincide. The cubic root of 18365036 is about 263.8338984232.

The spelling of 18365036 in words is "eighteen million, three hundred sixty-five thousand, thirty-six".