320444340322 has 4 divisors (see below), whose sum is σ = 480666510486. Its totient is φ = 160222170160.

The previous prime is 320444340287. The next prime is 320444340407. The reversal of 320444340322 is 223043444023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223043444023 = 1237 ⋅180309979.

It can be written as a sum of positive squares in only one way, i.e., 173771425881 + 146672914441 = 416859^2 + 382979^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80111085079 + ... + 80111085082.

Almost surely, 2^320444340322 is an apocalyptic number.

320444340322 is a deficient number, since it is larger than the sum of its proper divisors (160222170164).

320444340322 is a wasteful number, since it uses less digits than its factorization.

320444340322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160222170163.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 320444340322 its reverse (223043444023), we get a palindrome (543487784345).

The spelling of 320444340322 in words is "three hundred twenty billion, four hundred forty-four million, three hundred forty thousand, three hundred twenty-two".