323989872 has 80 divisors (see below), whose sum is σ = 862840608. Its totient is φ = 104693760.

The previous prime is 323989837. The next prime is 323989873. The reversal of 323989872 is 278989323.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323989873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379398 + ... + 380250.

Almost surely, 2^323989872 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 323989872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431420304).

323989872 is an abundant number, since it is smaller than the sum of its proper divisors (538850736).

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

323989872 is a wasteful number, since it uses less digits than its factorization.

323989872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1092 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 323989872 is about 17999.7186644681. The cubic root of 323989872 is about 686.8213888736.

The spelling of 323989872 in words is "three hundred twenty-three million, nine hundred eighty-nine thousand, eight hundred seventy-two".