18078964 has 12 divisors (see below), whose sum is σ = 31683904. Its totient is φ = 9026424.

The previous prime is 18078947. The next prime is 18079031. The reversal of 18078964 is 46987081.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18078964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277 + ... + 6019.

Almost surely, 2^18078964 is an apocalyptic number.

It is an amenable number.

18078964 is a deficient number, since it is larger than the sum of its proper divisors (13604940).

18078964 is a wasteful number, since it uses less digits than its factorization.

18078964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534 (or 6532 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 18078964 is about 4251.9364999962. The cubic root of 18078964 is about 262.4568104302.

The spelling of 18078964 in words is "eighteen million, seventy-eight thousand, nine hundred sixty-four".