18740964 has 36 divisors (see below), whose sum is σ = 48069392. Its totient is φ = 5678640.

The previous prime is 18740941. The next prime is 18740993. The reversal of 18740964 is 46904781.

18740964 = 332² + 333² + ... + 452².

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5002 + ... + 7905.

Almost surely, 2^18740964 is an apocalyptic number.

It is an amenable number.

18740964 is an abundant number, since it is smaller than the sum of its proper divisors (29328428).

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

18740964 is a wasteful number, since it uses less digits than its factorization.

18740964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936 (or 12923 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 18740964 is about 4329.0835057781. The cubic root of 18740964 is about 265.6219590701.

The spelling of 18740964 in words is "eighteen million, seven hundred forty thousand, nine hundred sixty-four".