4244666039 has 2 divisors, whose sum is σ = 4244666040. Its totient is φ = 4244666038.

The previous prime is 4244666033. The next prime is 4244666047. The reversal of 4244666039 is 9306664424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4244666039 - 2⁸ = 4244665783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4244666033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122333019 + 2122333020.

It is an arithmetic number, because the mean of its divisors is an integer number (2122333020).

Almost surely, 2^4244666039 is an apocalyptic number.

4244666039 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244666039 is an equidigital number, since it uses as much as digits as its factorization.

4244666039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 4244666039 is about 65151.1015946776. The cubic root of 4244666039 is about 1619.1279713400.

The spelling of 4244666039 in words is "four billion, two hundred forty-four million, six hundred sixty-six thousand, thirty-nine".