322225240 has 16 divisors (see below), whose sum is σ = 725006880. Its totient is φ = 128890080.

The previous prime is 322225223. The next prime is 322225247. The reversal of 322225240 is 42522223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322225247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027776 + ... + 4027855.

It is an arithmetic number, because the mean of its divisors is an integer number (45312930).

Almost surely, 2^322225240 is an apocalyptic number.

It is an amenable number.

322225240 is an abundant number, since it is smaller than the sum of its proper divisors (402781640).

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

322225240 is a wasteful number, since it uses less digits than its factorization.

322225240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055642 (or 8055638 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 322225240 is about 17950.6334150080. The cubic root of 322225240 is about 685.5721789680.

Adding to 322225240 its reverse (42522223), we get a palindrome (364747463).

The spelling of 322225240 in words is "three hundred twenty-two million, two hundred twenty-five thousand, two hundred forty".