322222240 has 24 divisors (see below), whose sum is σ = 761250420. Its totient is φ = 128888832.

The previous prime is 322222237. The next prime is 322222253. The reversal of 322222240 is 42222223.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 303177744 + 19044496 = 17412^2 + 4364^2 .

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, 1006785 + ... + 1007104.

Almost surely, 2^322222240 is an apocalyptic number.

It is an amenable number.

322222240 is an abundant number, since it is smaller than the sum of its proper divisors (439028180).

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

322222240 is a wasteful number, since it uses less digits than its factorization.

322222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013904 (or 2013896 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 322222240 is about 17950.5498523026. The cubic root of 322222240 is about 685.5700513435.

Adding to 322222240 its reverse (42222223), we get a palindrome (364444463).

The spelling of 322222240 in words is "three hundred twenty-two million, two hundred twenty-two thousand, two hundred forty".