42244220305 has 12 divisors (see below), whose sum is σ = 58969483380. Its totient is φ = 28967465184.

The previous prime is 42244220297. The next prime is 42244220309. The reversal of 42244220305 is 50302244224.

It can be written as a sum of positive squares in 2 ways, for example, as 27734572369 + 14509647936 = 166537^2 + 120456^2 .

It is not a de Polignac number, because 42244220305 - 2³ = 42244220297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42244220309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86212450 + ... + 86212939.

It is an arithmetic number, because the mean of its divisors is an integer number (4914123615).

Almost surely, 2^42244220305 is an apocalyptic number.

It is an amenable number.

42244220305 is a deficient number, since it is larger than the sum of its proper divisors (16725263075).

42244220305 is a wasteful number, since it uses less digits than its factorization.

42244220305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172425408 (or 172425401 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 42244220305 its reverse (50302244224), we get a palindrome (92546464529).

The spelling of 42244220305 in words is "forty-two billion, two hundred forty-four million, two hundred twenty thousand, three hundred five".