320381832 has 16 divisors (see below), whose sum is σ = 800954640. Its totient is φ = 106793936.

The previous prime is 320381827. The next prime is 320381833. The reversal of 320381832 is 238183023.

It is a self number, because there is not a number n which added to its sum of digits gives 320381832.

It is not an unprimeable number, because it can be changed into a prime (320381833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6674598 + ... + 6674645.

It is an arithmetic number, because the mean of its divisors is an integer number (50059665).

Almost surely, 2^320381832 is an apocalyptic number.

It is an amenable number.

320381832 is an abundant number, since it is smaller than the sum of its proper divisors (480572808).

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

320381832 is a wasteful number, since it uses less digits than its factorization.

320381832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349252 (or 13349248 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 320381832 is about 17899.2131670641. The cubic root of 320381832 is about 684.2623220093.

The spelling of 320381832 in words is "three hundred twenty million, three hundred eighty-one thousand, eight hundred thirty-two".