18456964 has 12 divisors (see below), whose sum is σ = 32332300. Its totient is φ = 9219168.

The previous prime is 18456941. The next prime is 18456967. The reversal of 18456964 is 46965481.

It can be written as a sum of positive squares in 2 ways, for example, as 3090564 + 15366400 = 1758^2 + 3920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18456964.

It is not an unprimeable number, because it can be changed into a prime (18456967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4102 + ... + 7330.

Almost surely, 2^18456964 is an apocalyptic number.

It is an amenable number.

18456964 is a deficient number, since it is larger than the sum of its proper divisors (13875336).

18456964 is a wasteful number, since it uses less digits than its factorization.

18456964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662 (or 4660 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 18456964 is about 4296.1568872656. The cubic root of 18456964 is about 264.2733814830.

The spelling of 18456964 in words is "eighteen million, four hundred fifty-six thousand, nine hundred sixty-four".