322216 has 8 divisors (see below), whose sum is σ = 604170. Its totient is φ = 161104.

The previous prime is 322213. The next prime is 322229. The reversal of 322216 is 612223.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 119716 = 450^2 + 346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 322216.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 322216.

It is not an unprimeable number, because it can be changed into a prime (322213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131 + ... + 20146.

2³²²²¹⁶ is an apocalyptic number.

It is an amenable number.

322216 is a deficient number, since it is larger than the sum of its proper divisors (281954).

322216 is a wasteful number, since it uses less digits than its factorization.

322216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40283 (or 40279 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 322216 is about 567.6407314490. The cubic root of 322216 is about 68.5565625842.

Adding to 322216 its reverse (612223), we get a palindrome (934439).

The spelling of 322216 in words is "three hundred twenty-two thousand, two hundred sixteen".