320322064 has 20 divisors (see below), whose sum is σ = 653289040. Its totient is φ = 151731360.

The previous prime is 320322047. The next prime is 320322073. The reversal of 320322064 is 460223023.

It is a happy number.

320322064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 526542 + ... + 527149.

It is an arithmetic number, because the mean of its divisors is an integer number (32664452).

Almost surely, 2^320322064 is an apocalyptic number.

It is an amenable number.

320322064 is an abundant number, since it is smaller than the sum of its proper divisors (332966976).

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

320322064 is a wasteful number, since it uses less digits than its factorization.

320322064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053718 (or 1053712 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 320322064 is about 17897.5435185949. The cubic root of 320322064 is about 684.2197691034.

Adding to 320322064 its reverse (460223023), we get a palindrome (780545087).

The spelling of 320322064 in words is "three hundred twenty million, three hundred twenty-two thousand, sixty-four".