664494302 has 8 divisors (see below), whose sum is σ = 1005886200. Its totient is φ = 329198904.

The previous prime is 664494301. The next prime is 664494307. The reversal of 664494302 is 203494466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664494301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523852 + ... + 1524287.

It is an arithmetic number, because the mean of its divisors is an integer number (125735775).

Almost surely, 2^664494302 is an apocalyptic number.

664494302 is a deficient number, since it is larger than the sum of its proper divisors (341391898).

664494302 is a wasteful number, since it uses less digits than its factorization.

664494302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048250.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 664494302 is about 25777.7869880252. The cubic root of 664494302 is about 872.6305645556.

The spelling of 664494302 in words is "six hundred sixty-four million, four hundred ninety-four thousand, three hundred two".