320213200 has 30 divisors (see below), whose sum is σ = 769313174. Its totient is φ = 128085120.

The previous prime is 320213197. The next prime is 320213261. The reversal of 320213200 is 2312023.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4511376 + 315701824 = 2124^2 + 17768^2 .

It is a congruent number.

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, 399867 + ... + 400666.

Almost surely, 2^320213200 is an apocalyptic number.

It is an amenable number.

320213200 is an abundant number, since it is smaller than the sum of its proper divisors (449099974).

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

320213200 is a wasteful number, since it uses less digits than its factorization.

320213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800551 (or 800540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320213200 is about 17894.5019489227. The cubic root of 320213200 is about 684.1422478113.

Adding to 320213200 its reverse (2312023), we get a palindrome (322525223).

The spelling of 320213200 in words is "three hundred twenty million, two hundred thirteen thousand, two hundred".