322240 has 56 divisors (see below), whose sum is σ = 822960. Its totient is φ = 119808.

The previous prime is 322237. The next prime is 322243. The reversal of 322240 is 42223.

It is an interprime number because it is at equal distance from previous prime (322237) and next prime (322243).

It is a self number, because there is not a number n which added to its sum of digits gives 322240.

It is not an unprimeable number, because it can be changed into a prime (322243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6054 + ... + 6106.

2³²²²⁴⁰ 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 322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411480).

322240 is an abundant number, since it is smaller than the sum of its proper divisors (500720).

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

322240 is a wasteful number, since it uses less digits than its factorization.

322240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 322240 is about 567.6618711874. The cubic root of 322240 is about 68.5582646688.

Adding to 322240 its reverse (42223), we get a palindrome (364463).

The spelling of 322240 in words is "three hundred twenty-two thousand, two hundred forty", and thus it is an iban number.