323220 has 24 divisors (see below), whose sum is σ = 905184. Its totient is φ = 86176.

The previous prime is 323207. The next prime is 323233. The reversal of 323220 is 22323.

It is an interprime number because it is at equal distance from previous prime (323207) and next prime (323233).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 323196 and 323205.

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 323220.

It is an unprimeable number.

323220 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, 2634 + ... + 2753.

It is an arithmetic number, because the mean of its divisors is an integer number (37716).

2³²³²²⁰ is an apocalyptic number.

323220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

323220 is an abundant number, since it is smaller than the sum of its proper divisors (581964).

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

323220 is a wasteful number, since it uses less digits than its factorization.

323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399 (or 5397 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 323220 is about 568.5244058086. The cubic root of 323220 is about 68.6276943942.

Adding to 323220 its reverse (22323), we get a palindrome (345543).

The spelling of 323220 in words is "three hundred twenty-three thousand, two hundred twenty", and thus it is an iban number.