322564 has 12 divisors (see below), whose sum is σ = 615888. Its totient is φ = 146600.

The previous prime is 322559. The next prime is 322571. The reversal of 322564 is 465223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3622 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (51324).

2³²²⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

322564 is a deficient number, since it is larger than the sum of its proper divisors (293324).

322564 is a wasteful number, since it uses less digits than its factorization.

322564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346 (or 7344 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 322564 is about 567.9471806427. The cubic root of 322564 is about 68.5812345434.

Adding to 322564 its reverse (465223), we get a palindrome (787787).

The spelling of 322564 in words is "three hundred twenty-two thousand, five hundred sixty-four".