322812 has 72 divisors (see below), whose sum is σ = 989520. Its totient is φ = 90720.

The previous prime is 322807. The next prime is 322849. The reversal of 322812 is 218223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 322812.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5262 + ... + 5322.

2³²²⁸¹² 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 322812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494760).

322812 is an abundant number, since it is smaller than the sum of its proper divisors (666708).

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

322812 is a wasteful number, since it uses less digits than its factorization.

322812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 73 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 322812 is about 568.1654688557. The cubic root of 322812 is about 68.5988060323.

It can be divided in two parts, 3228 and 12, that added together give a triangular number (3240 = T₈₀).

The spelling of 322812 in words is "three hundred twenty-two thousand, eight hundred twelve".