326220 has 24 divisors (see below), whose sum is σ = 913584. Its totient is φ = 86976.

The previous prime is 326219. The next prime is 326251. The reversal of 326220 is 22623.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 326220.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 326220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2659 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (38066).

2³²⁶²²⁰ is an apocalyptic number.

326220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326220 is an abundant number, since it is smaller than the sum of its proper divisors (587364).

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

326220 is a wasteful number, since it uses less digits than its factorization.

326220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449 (or 5447 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 326220 is about 571.1567210495. The cubic root of 326220 is about 68.8393658795.

Adding to 326220 its reverse (22623), we get a palindrome (348843).

The spelling of 326220 in words is "three hundred twenty-six thousand, two hundred twenty".