322660 has 48 divisors (see below), whose sum is σ = 783216. Its totient is φ = 110592.

The previous prime is 322649. The next prime is 322669. The reversal of 322660 is 66223.

It can be written as a sum of positive squares in 8 ways, for example, as 2304 + 320356 = 48^2 + 566^2 .

It is not an unprimeable number, because it can be changed into a prime (322669) by changing a digit.

322660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4384 + ... + 4456.

It is an arithmetic number, because the mean of its divisors is an integer number (16317).

2³²²⁶⁶⁰ 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 322660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391608).

322660 is an abundant number, since it is smaller than the sum of its proper divisors (460556).

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

322660 is a wasteful number, since it uses less digits than its factorization.

322660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 322660 is about 568.0316892569. The cubic root of 322660 is about 68.5880374781.

Adding to 322660 its reverse (66223), we get a palindrome (388883).

The spelling of 322660 in words is "three hundred twenty-two thousand, six hundred sixty".