323671968 has 72 divisors (see below), whose sum is σ = 924234948. Its totient is φ = 107446272.

The previous prime is 323671951. The next prime is 323671979. The reversal of 323671968 is 869176323.

It can be written as a sum of positive squares in 2 ways, for example, as 281836944 + 41835024 = 16788^2 + 6468^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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, 71830 + ... + 76202.

Almost surely, 2^323671968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323671968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462117474).

323671968 is an abundant number, since it is smaller than the sum of its proper divisors (600562980).

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

323671968 is a wasteful number, since it uses less digits than its factorization.

323671968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646 (or 4635 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 323671968 is about 17990.8856924833. The cubic root of 323671968 is about 686.5966753474.

The spelling of 323671968 in words is "three hundred twenty-three million, six hundred seventy-one thousand, nine hundred sixty-eight".