322130240 has 56 divisors (see below), whose sum is σ = 770439912. Its totient is φ = 128286720.

The previous prime is 322130233. The next prime is 322130257. The reversal of 322130240 is 42031223.

It can be written as a sum of positive squares in 4 ways, for example, as 135862336 + 186267904 = 11656^2 + 13648^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75032 + ... + 79208.

Almost surely, 2^322130240 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 322130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385219956).

322130240 is an abundant number, since it is smaller than the sum of its proper divisors (448309672).

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

322130240 is a wasteful number, since it uses less digits than its factorization.

322130240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435 (or 4425 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 322130240 is about 17947.9870737640. The cubic root of 322130240 is about 685.5047977798.

Adding to 322130240 its reverse (42031223), we get a palindrome (364161463).

The spelling of 322130240 in words is "three hundred twenty-two million, one hundred thirty thousand, two hundred forty".