322428320 has 24 divisors (see below), whose sum is σ = 761737284. Its totient is φ = 128971264.

The previous prime is 322428299. The next prime is 322428331. The reversal of 322428320 is 23824223.

It can be written as a sum of positive squares in 2 ways, for example, as 320696464 + 1731856 = 17908^2 + 1316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 322428320.

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, 1007429 + ... + 1007748.

Almost surely, 2^322428320 is an apocalyptic number.

It is an amenable number.

322428320 is an abundant number, since it is smaller than the sum of its proper divisors (439308964).

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

322428320 is a wasteful number, since it uses less digits than its factorization.

322428320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015192 (or 2015184 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 322428320 is about 17956.2891489305. The cubic root of 322428320 is about 685.7161742673.

The spelling of 322428320 in words is "three hundred twenty-two million, four hundred twenty-eight thousand, three hundred twenty".