323328 has 36 divisors (see below), whose sum is σ = 862568. Its totient is φ = 107520.

The previous prime is 323273. The next prime is 323333. The reversal of 323328 is 823323.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

323328 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 3 ways as a sum of consecutive naturals, for example, 558 + ... + 978.

2³²³³²⁸ 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 323328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431284).

323328 is an abundant number, since it is smaller than the sum of its proper divisors (539240).

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

323328 is an equidigital number, since it uses as much as digits as its factorization.

323328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 426 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 323328 is about 568.6193806053. The cubic root of 323328 is about 68.6353372439.

The spelling of 323328 in words is "three hundred twenty-three thousand, three hundred twenty-eight".