664269330 has 64 divisors (see below), whose sum is σ = 1637273088. Its totient is φ = 172400640.

The previous prime is 664269329. The next prime is 664269343. The reversal of 664269330 is 33962466.

It is a super-3 number, since 3×664269330³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270910 + ... + 273350.

It is an arithmetic number, because the mean of its divisors is an integer number (25582392).

Almost surely, 2^664269330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664269330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818636544).

664269330 is an abundant number, since it is smaller than the sum of its proper divisors (973003758).

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

664269330 is a wasteful number, since it uses less digits than its factorization.

664269330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691.

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 664269330 is about 25773.4229391441. The cubic root of 664269330 is about 872.5320738176.

The spelling of 664269330 in words is "six hundred sixty-four million, two hundred sixty-nine thousand, three hundred thirty".