18285964 has 6 divisors (see below), whose sum is σ = 32000444. Its totient is φ = 9142980.

The previous prime is 18285919. The next prime is 18285983. The reversal of 18285964 is 46958281.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18285964.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2285742 + ... + 2285749.

Almost surely, 2^18285964 is an apocalyptic number.

It is an amenable number.

18285964 is a deficient number, since it is larger than the sum of its proper divisors (13714480).

18285964 is a wasteful number, since it uses less digits than its factorization.

18285964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571495 (or 4571493 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 18285964 is about 4276.2090687898. The cubic root of 18285964 is about 263.4547016602.

The spelling of 18285964 in words is "eighteen million, two hundred eighty-five thousand, nine hundred sixty-four".