20422240042040 has 32 divisors (see below), whose sum is σ = 47432299455360. Its totient is φ = 7905383241600.

The previous prime is 20422240041989. The next prime is 20422240042081. The reversal of 20422240042040 is 4024004222402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8234772971 + ... + 8234775450.

It is an arithmetic number, because the mean of its divisors is an integer number (1482259357980).

Almost surely, 2^{20422240042040} is an apocalyptic number.

20422240042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422240042040 is an abundant number, since it is smaller than the sum of its proper divisors (27010059413320).

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

20422240042040 is a wasteful number, since it uses less digits than its factorization.

20422240042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16469548463 (or 16469548459 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20422240042040 its reverse (4024004222402), we get a palindrome (24446244264442).

The spelling of 20422240042040 in words is "twenty trillion, four hundred twenty-two billion, two hundred forty million, forty-two thousand, forty".