322005421540 has 48 divisors (see below), whose sum is σ = 738128510784. Its totient is φ = 117022505600.

The previous prime is 322005421513. The next prime is 322005421561. The reversal of 322005421540 is 45124500223.

It is a junction number, because it is equal to n+sod(n) for n = 322005421499 and 322005421508.

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 in 15 ways as a sum of consecutive naturals, for example, 72271 + ... + 805750.

It is an arithmetic number, because the mean of its divisors is an integer number (15377677308).

Almost surely, 2^322005421540 is an apocalyptic number.

It is an amenable number.

322005421540 is an abundant number, since it is smaller than the sum of its proper divisors (416123089244).

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

322005421540 is a wasteful number, since it uses less digits than its factorization.

322005421540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879708 (or 879706 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 322005421540 its reverse (45124500223), we get a palindrome (367129921763).

The spelling of 322005421540 in words is "three hundred twenty-two billion, five million, four hundred twenty-one thousand, five hundred forty".