20426206422 has 8 divisors (see below), whose sum is σ = 40852412856. Its totient is φ = 6808735472.

The previous prime is 20426206379. The next prime is 20426206441. The reversal of 20426206422 is 22460262402.

It is a sphenic number, since it is the product of 3 distinct primes.

20426206422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20426206422.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1702183863 + ... + 1702183874.

It is an arithmetic number, because the mean of its divisors is an integer number (5106551607).

Almost surely, 2^20426206422 is an apocalyptic number.

20426206422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20426206422 is a wasteful number, since it uses less digits than its factorization.

20426206422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404367742.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20426206422 its reverse (22460262402), we get a palindrome (42886468824).

The spelling of 20426206422 in words is "twenty billion, four hundred twenty-six million, two hundred six thousand, four hundred twenty-two".