18956968 has 32 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 9009088.

The previous prime is 18956963. The next prime is 18956969. The reversal of 18956968 is 86965981.

It is not an unprimeable number, because it can be changed into a prime (18956963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49305 + ... + 49687.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 2^18956968 is an apocalyptic number.

It is an amenable number.

18956968 is a deficient number, since it is larger than the sum of its proper divisors (18367832).

18956968 is a wasteful number, since it uses less digits than its factorization.

18956968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 677 counting only the distinct ones).

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

The square root of 18956968 is about 4353.9600365644. The cubic root of 18956968 is about 266.6385623159.

The spelling of 18956968 in words is "eighteen million, nine hundred fifty-six thousand, nine hundred sixty-eight".