20424040422 has 16 divisors (see below), whose sum is σ = 41252518512. Its totient is φ = 6740607200.

The previous prime is 20424040339. The next prime is 20424040423. The reversal of 20424040422 is 22404042402.

It is a junction number, because it is equal to n+sod(n) for n = 20424040392 and 20424040401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424040423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16850913 + ... + 16852124.

It is an arithmetic number, because the mean of its divisors is an integer number (2578282407).

Almost surely, 2^20424040422 is an apocalyptic number.

20424040422 is an abundant number, since it is smaller than the sum of its proper divisors (20828478090).

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

20424040422 is a wasteful number, since it uses less digits than its factorization.

20424040422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703143.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20424040422 its reverse (22404042402), we get a palindrome (42828082824).

The spelling of 20424040422 in words is "twenty billion, four hundred twenty-four million, forty thousand, four hundred twenty-two".