20404424322 has 24 divisors (see below), whose sum is σ = 44212463100. Its totient is φ = 6801032160.

The previous prime is 20404424297. The next prime is 20404424333. The reversal of 20404424322 is 22342440402.

20404424322 is a `hidden beast` number, since 204 + 0 + 4 + 424 + 32 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20184169041 + 220255281 = 142071^2 + 14841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366804 + ... + 418752.

Almost surely, 2^20404424322 is an apocalyptic number.

20404424322 is an abundant number, since it is smaller than the sum of its proper divisors (23808038778).

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

20404424322 is a wasteful number, since it uses less digits than its factorization.

20404424322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73778 (or 73775 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20404424322 its reverse (22342440402), we get a palindrome (42746864724).

The spelling of 20404424322 in words is "twenty billion, four hundred four million, four hundred twenty-four thousand, three hundred twenty-two".