4042242173 has 2 divisors, whose sum is σ = 4042242174. Its totient is φ = 4042242172.

The previous prime is 4042242151. The next prime is 4042242221. The reversal of 4042242173 is 3712422404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4042162084 + 80089 = 63578^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042242173 - 2⁶ = 4042242109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042242143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021121086 + 2021121087.

It is an arithmetic number, because the mean of its divisors is an integer number (2021121087).

Almost surely, 2^4042242173 is an apocalyptic number.

It is an amenable number.

4042242173 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042242173 is an equidigital number, since it uses as much as digits as its factorization.

4042242173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 4042242173 is about 63578.6298452554. The cubic root of 4042242173 is about 1592.9694351656.

Adding to 4042242173 its reverse (3712422404), we get a palindrome (7754664577).

The spelling of 4042242173 in words is "four billion, forty-two million, two hundred forty-two thousand, one hundred seventy-three".