322743761320 has 64 divisors (see below), whose sum is σ = 746242016400. Its totient is φ = 125533900800.

The previous prime is 322743761311. The next prime is 322743761339. The reversal of 322743761320 is 23167347223.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 169864325316 + 152879436004 = 412146^2 + 390998^2 .

It is a super-2 number, since 2×322743761320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2465520 + ... + 2593120.

Almost surely, 2^322743761320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322743761320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373121008200).

322743761320 is an abundant number, since it is smaller than the sum of its proper divisors (423498255080).

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

322743761320 is a wasteful number, since it uses less digits than its factorization.

322743761320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129358 (or 129354 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 322743761320 in words is "three hundred twenty-two billion, seven hundred forty-three million, seven hundred sixty-one thousand, three hundred twenty".