664048484 has 36 divisors (see below), whose sum is σ = 1307079312. Its totient is φ = 294811440.

The previous prime is 664048459. The next prime is 664048487. The reversal of 664048484 is 484840466.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (664048487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4859 + ... + 36765.

Almost surely, 2^664048484 is an apocalyptic number.

It is an amenable number.

664048484 is a deficient number, since it is larger than the sum of its proper divisors (643030828).

664048484 is a wasteful number, since it uses less digits than its factorization.

664048484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31976 (or 31963 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 44.

The square root of 664048484 is about 25769.1382083297. The cubic root of 664048484 is about 872.4353677736.

The spelling of 664048484 in words is "six hundred sixty-four million, forty-eight thousand, four hundred eighty-four".