328442864 has 40 divisors (see below), whose sum is σ = 660329760. Its totient is φ = 158070528.

The previous prime is 328442857. The next prime is 328442867. The reversal of 328442864 is 468244823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328442867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183317 + ... + 185099.

It is an arithmetic number, because the mean of its divisors is an integer number (16508244).

Almost surely, 2^328442864 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 328442864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330164880).

328442864 is an abundant number, since it is smaller than the sum of its proper divisors (331886896).

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

328442864 is a wasteful number, since it uses less digits than its factorization.

328442864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217 (or 2211 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 328442864 is about 18122.9926888469. The cubic root of 328442864 is about 689.9536928946.

The spelling of 328442864 in words is "three hundred twenty-eight million, four hundred forty-two thousand, eight hundred sixty-four".