320204132 has 12 divisors (see below), whose sum is σ = 560919660. Its totient is φ = 159941376.

The previous prime is 320204119. The next prime is 320204149. The reversal of 320204132 is 231402023.

It can be written as a sum of positive squares in 2 ways, for example, as 62473216 + 257730916 = 7904^2 + 16054^2 .

It is a super-2 number, since 2×320204132² = 205061372299746848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320204132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35633 + ... + 43704.

It is an arithmetic number, because the mean of its divisors is an integer number (46743305).

Almost surely, 2^320204132 is an apocalyptic number.

It is an amenable number.

320204132 is a deficient number, since it is larger than the sum of its proper divisors (240715528).

320204132 is a wasteful number, since it uses less digits than its factorization.

320204132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80350 (or 80348 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320204132 is about 17894.2485732148. The cubic root of 320204132 is about 684.1357897594.

Adding to 320204132 its reverse (231402023), we get a palindrome (551606155).

The spelling of 320204132 in words is "three hundred twenty million, two hundred four thousand, one hundred thirty-two".