320320132 has 24 divisors (see below), whose sum is σ = 612319680. Its totient is φ = 145409760.

The previous prime is 320320127. The next prime is 320320139. The reversal of 320320132 is 231023023.

It is not an unprimeable number, because it can be changed into a prime (320320139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32578 + ... + 41254.

It is an arithmetic number, because the mean of its divisors is an integer number (25513320).

Almost surely, 2^320320132 is an apocalyptic number.

It is an amenable number.

320320132 is a deficient number, since it is larger than the sum of its proper divisors (291999548).

320320132 is a wasteful number, since it uses less digits than its factorization.

320320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320320132 is about 17897.4895446261. The cubic root of 320320132 is about 684.2183934928.

Adding to 320320132 its reverse (231023023), we get a palindrome (551343155).

The spelling of 320320132 in words is "three hundred twenty million, three hundred twenty thousand, one hundred thirty-two".