320321324444 has 48 divisors (see below), whose sum is σ = 644840179200. Its totient is φ = 137694787200.

The previous prime is 320321324443. The next prime is 320321324447. The reversal of 320321324444 is 444423123023.

It is a self number, because there is not a number n which added to its sum of digits gives 320321324444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320321324443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138989 + ... + 812379.

It is an arithmetic number, because the mean of its divisors is an integer number (13434170400).

Almost surely, 2^320321324444 is an apocalyptic number.

It is an amenable number.

320321324444 is an abundant number, since it is smaller than the sum of its proper divisors (324518854756).

320321324444 is a wasteful number, since it uses less digits than its factorization.

320321324444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673994 (or 673992 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 320321324444 its reverse (444423123023), we get a palindrome (764744447467).

The spelling of 320321324444 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred twenty-four thousand, four hundred forty-four".