320374336 has 42 divisors (see below), whose sum is σ = 657038310. Its totient is φ = 154990080.

The previous prime is 320374319. The next prime is 320374349. The reversal of 320374336 is 633473023.

It can be written as a sum of positive squares in only one way, i.e., 318836736 + 1537600 = 17856^2 + 1240^2 .

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 320374298 and 320374307.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58900 + ... + 64108.

Almost surely, 2^320374336 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 320374336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328519155).

320374336 is an abundant number, since it is smaller than the sum of its proper divisors (336663974).

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

320374336 is an equidigital number, since it uses as much as digits as its factorization.

320374336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283 (or 5242 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 31.

The square root of 320374336 is about 17899.0037711600. The cubic root of 320374336 is about 684.2569853872.

The spelling of 320374336 in words is "three hundred twenty million, three hundred seventy-four thousand, three hundred thirty-six".