20104422426 has 80 divisors (see below), whose sum is σ = 49305564000. Its totient is φ = 6072239520.

The previous prime is 20104422419. The next prime is 20104422427. The reversal of 20104422426 is 62422440102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20104422426.

It is not an unprimeable number, because it can be changed into a prime (20104422427) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 528700 + ... + 565448.

It is an arithmetic number, because the mean of its divisors is an integer number (616319550).

Almost surely, 2^20104422426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20104422426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24652782000).

20104422426 is an abundant number, since it is smaller than the sum of its proper divisors (29201141574).

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

20104422426 is a wasteful number, since it uses less digits than its factorization.

20104422426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37081 (or 37072 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20104422426 its reverse (62422440102), we get a palindrome (82526862528).

The spelling of 20104422426 in words is "twenty billion, one hundred four million, four hundred twenty-two thousand, four hundred twenty-six".