20344042422 has 36 divisors (see below), whose sum is σ = 48450210900. Its totient is φ = 6164860680.

The previous prime is 20344042417. The next prime is 20344042429. The reversal of 20344042422 is 22424044302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344042429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4668172 + ... + 4672527.

Almost surely, 2^20344042422 is an apocalyptic number.

20344042422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20344042422 is an abundant number, since it is smaller than the sum of its proper divisors (28106168478).

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

20344042422 is a wasteful number, since it uses less digits than its factorization.

20344042422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9340729 (or 9340715 counting only the distinct ones).

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

Adding to 20344042422 its reverse (22424044302), we get a palindrome (42768086724).

The spelling of 20344042422 in words is "twenty billion, three hundred forty-four million, forty-two thousand, four hundred twenty-two".