324220320424 has 128 divisors (see below), whose sum is σ = 819475937280. Its totient is φ = 116137440000.

The previous prime is 324220320377. The next prime is 324220320439. The reversal of 324220320424 is 424023022423.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 324220320392 and 324220320401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1929357 + ... + 2090659.

It is an arithmetic number, because the mean of its divisors is an integer number (6402155760).

Almost surely, 2^324220320424 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 324220320424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409737968640).

324220320424 is an abundant number, since it is smaller than the sum of its proper divisors (495255616856).

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

324220320424 is a wasteful number, since it uses less digits than its factorization.

324220320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161591 (or 161587 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 324220320424 its reverse (424023022423), we get a palindrome (748243342847).

The spelling of 324220320424 in words is "three hundred twenty-four billion, two hundred twenty million, three hundred twenty thousand, four hundred twenty-four".