422242013 has 2 divisors, whose sum is σ = 422242014. Its totient is φ = 422242012.

The previous prime is 422242003. The next prime is 422242021. The reversal of 422242013 is 310242224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417670969 + 4571044 = 20437^2 + 2138^2 .

It is a cyclic number.

It is not a de Polignac number, because 422242013 - 2¹⁰ = 422240989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422242003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211121006 + 211121007.

It is an arithmetic number, because the mean of its divisors is an integer number (211121007).

Almost surely, 2^422242013 is an apocalyptic number.

It is an amenable number.

422242013 is a deficient number, since it is larger than the sum of its proper divisors (1).

422242013 is an equidigital number, since it uses as much as digits as its factorization.

422242013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 422242013 is about 20548.5282441347. The cubic root of 422242013 is about 750.2174261469.

Adding to 422242013 its reverse (310242224), we get a palindrome (732484237).

The spelling of 422242013 in words is "four hundred twenty-two million, two hundred forty-two thousand, thirteen".