18896964 has 12 divisors (see below), whose sum is σ = 44092944. Its totient is φ = 6298984.

The previous prime is 18896959. The next prime is 18896989. The reversal of 18896964 is 46969881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787362 + ... + 787385.

It is an arithmetic number, because the mean of its divisors is an integer number (3674412).

Almost surely, 2^18896964 is an apocalyptic number.

It is an amenable number.

18896964 is an abundant number, since it is smaller than the sum of its proper divisors (25195980).

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

18896964 is a wasteful number, since it uses less digits than its factorization.

18896964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574754 (or 1574752 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 18896964 is about 4347.0638366603. The cubic root of 18896964 is about 266.3569369201.

The spelling of 18896964 in words is "eighteen million, eight hundred ninety-six thousand, nine hundred sixty-four".