320404022340 has 24 divisors (see below), whose sum is σ = 897131262720. Its totient is φ = 85441072608.

The previous prime is 320404022321. The next prime is 320404022359. The reversal of 320404022340 is 43220404023.

It is an interprime number because it is at equal distance from previous prime (320404022321) and next prime (320404022359).

It is a self number, because there is not a number n which added to its sum of digits gives 320404022340.

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, 2670033460 + ... + 2670033579.

It is an arithmetic number, because the mean of its divisors is an integer number (37380469280).

Almost surely, 2^320404022340 is an apocalyptic number.

320404022340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320404022340 is an abundant number, since it is smaller than the sum of its proper divisors (576727240380).

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

320404022340 is a wasteful number, since it uses less digits than its factorization.

320404022340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340067051 (or 5340067049 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 320404022340 its reverse (43220404023), we get a palindrome (363624426363).

The spelling of 320404022340 in words is "three hundred twenty billion, four hundred four million, twenty-two thousand, three hundred forty".