320328250 has 32 divisors (see below), whose sum is σ = 654174144. Its totient is φ = 116482000.

The previous prime is 320328247. The next prime is 320328257. The reversal of 320328250 is 52823023.

It is a super-2 number, since 2×320328250² = 205220375496125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (320328257) 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, 55492 + ... + 60991.

It is an arithmetic number, because the mean of its divisors is an integer number (20442942).

Almost surely, 2^320328250 is an apocalyptic number.

320328250 is an abundant number, since it is smaller than the sum of its proper divisors (333845894).

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

320328250 is a wasteful number, since it uses less digits than its factorization.

320328250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116511 (or 116501 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 320328250 is about 17897.7163347730. The cubic root of 320328250 is about 684.2241735833.

The spelling of 320328250 in words is "three hundred twenty million, three hundred twenty-eight thousand, two hundred fifty".