20422240240 has 40 divisors (see below), whose sum is σ = 47489326560. Its totient is φ = 8167585536.

The previous prime is 20422240229. The next prime is 20422240271. The reversal of 20422240240 is 4204222402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 596877 + ... + 630163.

It is an arithmetic number, because the mean of its divisors is an integer number (1187233164).

Almost surely, 2^20422240240 is an apocalyptic number.

20422240240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422240240 is an abundant number, since it is smaller than the sum of its proper divisors (27067086320).

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

20422240240 is a wasteful number, since it uses less digits than its factorization.

20422240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40969 (or 40963 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20422240240 its reverse (4204222402), we get a palindrome (24626462642).

The spelling of 20422240240 in words is "twenty billion, four hundred twenty-two million, two hundred forty thousand, two hundred forty".