323149664 has 24 divisors (see below), whose sum is σ = 640423728. Its totient is φ = 160502400.

The previous prime is 323149661. The next prime is 323149679. The reversal of 323149664 is 466941323.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323149661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28607 + ... + 38270.

It is an arithmetic number, because the mean of its divisors is an integer number (26684322).

Almost surely, 2^323149664 is an apocalyptic number.

It is an amenable number.

323149664 is a deficient number, since it is larger than the sum of its proper divisors (317274064).

323149664 is a wasteful number, since it uses less digits than its factorization.

323149664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67038 (or 67030 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 323149664 is about 17976.3640372574. The cubic root of 323149664 is about 686.2271600212.

The spelling of 323149664 in words is "three hundred twenty-three million, one hundred forty-nine thousand, six hundred sixty-four".