20422241340 has 24 divisors (see below), whose sum is σ = 57182275920. Its totient is φ = 5445931008.

The previous prime is 20422241311. The next prime is 20422241419. The reversal of 20422241340 is 4314222402.

It is a self number, because there is not a number n which added to its sum of digits gives 20422241340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170185285 + ... + 170185404.

It is an arithmetic number, because the mean of its divisors is an integer number (2382594830).

Almost surely, 2^20422241340 is an apocalyptic number.

20422241340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422241340 is an abundant number, since it is smaller than the sum of its proper divisors (36760034580).

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

20422241340 is a wasteful number, since it uses less digits than its factorization.

20422241340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340370701 (or 340370699 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20422241340 its reverse (4314222402), we get a palindrome (24736463742).

The spelling of 20422241340 in words is "twenty billion, four hundred twenty-two million, two hundred forty-one thousand, three hundred forty".