20022425240 has 32 divisors (see below), whose sum is σ = 47700485280. Its totient is φ = 7537853952.

The previous prime is 20022425179. The next prime is 20022425279. The reversal of 20022425240 is 4252422002.

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 7 ways as a sum of consecutive naturals, for example, 14721692 + ... + 14723051.

It is an arithmetic number, because the mean of its divisors is an integer number (1490640165).

Almost surely, 2^20022425240 is an apocalyptic number.

20022425240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022425240 is an abundant number, since it is smaller than the sum of its proper divisors (27678060040).

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

20022425240 is a wasteful number, since it uses less digits than its factorization.

20022425240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29444771 (or 29444767 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 20022425240 its reverse (4252422002), we get a palindrome (24274847242).

It can be divided in two parts, 2002 and 2425240, that added together give a palindrome (2427242).

The spelling of 20022425240 in words is "twenty billion, twenty-two million, four hundred twenty-five thousand, two hundred forty".