4042241309 has 2 divisors, whose sum is σ = 4042241310. Its totient is φ = 4042241308.

The previous prime is 4042241293. The next prime is 4042241323. The reversal of 4042241309 is 9031422404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3291316900 + 750924409 = 57370^2 + 27403^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042241309 - 2⁴ = 4042241293 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 (4042241809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021120654 + 2021120655.

It is an arithmetic number, because the mean of its divisors is an integer number (2021120655).

Almost surely, 2^4042241309 is an apocalyptic number.

It is an amenable number.

4042241309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042241309 is an equidigital number, since it uses as much as digits as its factorization.

4042241309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4042241309 is about 63578.6230505191. The cubic root of 4042241309 is about 1592.9693216703.

The spelling of 4042241309 in words is "four billion, forty-two million, two hundred forty-one thousand, three hundred nine".