320922 has 40 divisors (see below), whose sum is σ = 824736. Its totient is φ = 91368.

The previous prime is 320911. The next prime is 320923. The reversal of 320922 is 229023.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320895 and 320904.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320922.

It is not an unprimeable number, because it can be changed into a prime (320923) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 993 + ... + 1275.

2³²⁰⁹²² is an apocalyptic number.

It is a pronic number, being equal to 566×567.

It is a practical number, because each smaller number is the sum of distinct divisors of 320922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412368).

320922 is an abundant number, since it is smaller than the sum of its proper divisors (503814).

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

320922 is a wasteful number, since it uses less digits than its factorization.

320922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 320922 is about 566.4997793468. The cubic root of 320922 is about 68.4646664525.

Adding to 320922 its reverse (229023), we get a palindrome (549945).

The spelling of 320922 in words is "three hundred twenty thousand, nine hundred twenty-two".