2243444309 has 2 divisors, whose sum is σ = 2243444310. Its totient is φ = 2243444308.

The previous prime is 2243444197. The next prime is 2243444317. The reversal of 2243444309 is 9034443422.

2243444309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1524668209 + 718776100 = 39047^2 + 26810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243444309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243444369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121722154 + 1121722155.

It is an arithmetic number, because the mean of its divisors is an integer number (1121722155).

Almost surely, 2^2243444309 is an apocalyptic number.

It is an amenable number.

2243444309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243444309 is an equidigital number, since it uses as much as digits as its factorization.

2243444309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 2243444309 is about 47365.0114430473. The cubic root of 2243444309 is about 1309.0968093985.

The spelling of 2243444309 in words is "two billion, two hundred forty-three million, four hundred forty-four thousand, three hundred nine".