322320660 has 24 divisors (see below), whose sum is σ = 902498016. Its totient is φ = 85952160.

The previous prime is 322320659. The next prime is 322320667. The reversal of 322320660 is 66023223.

It is a self number, because there is not a number n which added to its sum of digits gives 322320660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322320667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685946 + ... + 2686065.

It is an arithmetic number, because the mean of its divisors is an integer number (37604084).

Almost surely, 2^322320660 is an apocalyptic number.

322320660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

322320660 is an abundant number, since it is smaller than the sum of its proper divisors (580177356).

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

322320660 is a wasteful number, since it uses less digits than its factorization.

322320660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372023 (or 5372021 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 322320660 is about 17953.2910632006. The cubic root of 322320660 is about 685.6398447216.

Adding to 322320660 its reverse (66023223), we get a palindrome (388343883).

The spelling of 322320660 in words is "three hundred twenty-two million, three hundred twenty thousand, six hundred sixty".