18569968 has 20 divisors (see below), whose sum is σ = 36301248. Its totient is φ = 9201920.

The previous prime is 18569963. The next prime is 18569987. The reversal of 18569968 is 86996581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18569963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3328 + ... + 6943.

Almost surely, 2^18569968 is an apocalyptic number.

It is an amenable number.

18569968 is a deficient number, since it is larger than the sum of its proper divisors (17731280).

18569968 is a wasteful number, since it uses less digits than its factorization.

18569968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10392 (or 10386 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 18569968 is about 4309.2885723748. The cubic root of 18569968 is about 264.8116283232.

The spelling of 18569968 in words is "eighteen million, five hundred sixty-nine thousand, nine hundred sixty-eight".