320900 has 18 divisors (see below), whose sum is σ = 696570. Its totient is φ = 128320.

The previous prime is 320899. The next prime is 320911. The reversal of 320900 is 9023.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 24964 + 295936 = 158^2 + 544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1505 + ... + 1704.

2³²⁰⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

320900 is an abundant number, since it is smaller than the sum of its proper divisors (375670).

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

320900 is a wasteful number, since it uses less digits than its factorization.

320900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 320900 is about 566.4803615307. The cubic root of 320900 is about 68.4631019425.

Adding to 320900 its reverse (9023), we get a palindrome (329923).

The spelling of 320900 in words is "three hundred twenty thousand, nine hundred".