18536996 has 6 divisors (see below), whose sum is σ = 32439750. Its totient is φ = 9268496.

The previous prime is 18536929. The next prime is 18537019. The reversal of 18536996 is 69963581.

It can be written as a sum of positive squares in only one way, i.e., 9834496 + 8702500 = 3136^2 + 2950^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18536996.

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 as a sum of consecutive naturals, namely, 2317121 + ... + 2317128.

It is an arithmetic number, because the mean of its divisors is an integer number (5406625).

Almost surely, 2^18536996 is an apocalyptic number.

It is an amenable number.

18536996 is a deficient number, since it is larger than the sum of its proper divisors (13902754).

18536996 is a wasteful number, since it uses less digits than its factorization.

18536996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634253 (or 4634251 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 18536996 is about 4305.4611831951. The cubic root of 18536996 is about 264.6548062654.

The spelling of 18536996 in words is "eighteen million, five hundred thirty-six thousand, nine hundred ninety-six".