322428 has 24 divisors (see below), whose sum is σ = 762832. Its totient is φ = 105984.

The previous prime is 322417. The next prime is 322429. The reversal of 322428 is 824223.

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 322428.

It is not an unprimeable number, because it can be changed into a prime (322429) by changing a digit.

322428 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 7 ways as a sum of consecutive naturals, for example, 1026 + ... + 1302.

2³²²⁴²⁸ is an apocalyptic number.

It is an amenable number.

322428 is an abundant number, since it is smaller than the sum of its proper divisors (440404).

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

322428 is a wasteful number, since it uses less digits than its factorization.

322428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 379 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 322428 is about 567.8274385762. The cubic root of 322428 is about 68.5715947417.

The spelling of 322428 in words is "three hundred twenty-two thousand, four hundred twenty-eight".