320550244340 has 24 divisors (see below), whose sum is σ = 673368065160. Its totient is φ = 128179611648.

The previous prime is 320550244337. The next prime is 320550244409. The reversal of 320550244340 is 43442055023.

It can be written as a sum of positive squares in 4 ways, for example, as 133445551204 + 187104693136 = 365302^2 + 432556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320550244297 and 320550244306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2465417 + ... + 2592176.

It is an arithmetic number, because the mean of its divisors is an integer number (28057002715).

Almost surely, 2^320550244340 is an apocalyptic number.

It is an amenable number.

320550244340 is an abundant number, since it is smaller than the sum of its proper divisors (352817820820).

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

320550244340 is a wasteful number, since it uses less digits than its factorization.

320550244340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060771 (or 5060769 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 320550244340 its reverse (43442055023), we get a palindrome (363992299363).

The spelling of 320550244340 in words is "three hundred twenty billion, five hundred fifty million, two hundred forty-four thousand, three hundred forty".