320395264 has 48 divisors (see below), whose sum is σ = 732186000. Its totient is φ = 137306112.

The previous prime is 320395259. The next prime is 320395289. The reversal of 320395264 is 462593023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3162 + ... + 25510.

It is an arithmetic number, because the mean of its divisors is an integer number (15253875).

Almost surely, 2^320395264 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 320395264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366093000).

320395264 is an abundant number, since it is smaller than the sum of its proper divisors (411790736).

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

320395264 is an equidigital number, since it uses as much as digits as its factorization.

320395264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22378 (or 22358 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 320395264 is about 17899.5883751554. The cubic root of 320395264 is about 684.2718844357.

The spelling of 320395264 in words is "three hundred twenty million, three hundred ninety-five thousand, two hundred sixty-four".