4244261909 has 2 divisors, whose sum is σ = 4244261910. Its totient is φ = 4244261908.

The previous prime is 4244261867. The next prime is 4244261953. The reversal of 4244261909 is 9091624424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3970260100 + 274001809 = 63010^2 + 16553^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244261909 - 2¹⁶ = 4244196373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4244261999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122130954 + 2122130955.

It is an arithmetic number, because the mean of its divisors is an integer number (2122130955).

Almost surely, 2^4244261909 is an apocalyptic number.

It is an amenable number.

4244261909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244261909 is an equidigital number, since it uses as much as digits as its factorization.

4244261909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 4244261909 is about 65148.0000383742. Note that the first 4 decimals coincide. The cubic root of 4244261909 is about 1619.0765845761.

The spelling of 4244261909 in words is "four billion, two hundred forty-four million, two hundred sixty-one thousand, nine hundred nine".