323981616 has 120 divisors (see below), whose sum is σ = 1009887744. Its totient is φ = 87661440.

The previous prime is 323981599. The next prime is 323981621. The reversal of 323981616 is 616189323.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119961 + ... + 122631.

Almost surely, 2^323981616 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 323981616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504943872).

323981616 is an abundant number, since it is smaller than the sum of its proper divisors (685906128).

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

323981616 is a wasteful number, since it uses less digits than its factorization.

323981616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2702 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 323981616 is about 17999.4893260892. The cubic root of 323981616 is about 686.8155548995.

The spelling of 323981616 in words is "three hundred twenty-three million, nine hundred eighty-one thousand, six hundred sixteen".