322864 has 20 divisors (see below), whose sum is σ = 662904. Its totient is φ = 151808.

The previous prime is 322859. The next prime is 322871. The reversal of 322864 is 468223.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322 + ... + 865.

2³²²⁸⁶⁴ is an apocalyptic number.

322864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

322864 is an abundant number, since it is smaller than the sum of its proper divisors (340040).

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

322864 is a wasteful number, since it uses less digits than its factorization.

322864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1206 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 322864 is about 568.2112283297. The cubic root of 322864 is about 68.6024892353.

The spelling of 322864 in words is "three hundred twenty-two thousand, eight hundred sixty-four".