18650964 has 48 divisors (see below), whose sum is σ = 45334016. Its totient is φ = 5961600.

The previous prime is 18650927. The next prime is 18650977. The reversal of 18650964 is 46905681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67194 + ... + 67470.

Almost surely, 2^18650964 is an apocalyptic number.

It is an amenable number.

18650964 is an abundant number, since it is smaller than the sum of its proper divisors (26683052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18650964 is a wasteful number, since it uses less digits than its factorization.

18650964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 18650964 is about 4318.6761860552. The cubic root of 18650964 is about 265.1960765534.

The spelling of 18650964 in words is "eighteen million, six hundred fifty thousand, nine hundred sixty-four".