3668244449 has 2 divisors, whose sum is σ = 3668244450. Its totient is φ = 3668244448.

The previous prime is 3668244431. The next prime is 3668244451. The reversal of 3668244449 is 9444428663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2963713600 + 704530849 = 54440^2 + 26543^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668244449 - 2⁸ = 3668244193 is a prime.

It is a Sophie Germain prime.

Together with 3668244451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3668244397 and 3668244406.

It is not a weakly prime, because it can be changed into another prime (3668244049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834122224 + 1834122225.

It is an arithmetic number, because the mean of its divisors is an integer number (1834122225).

Almost surely, 2^3668244449 is an apocalyptic number.

It is an amenable number.

3668244449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668244449 is an equidigital number, since it uses as much as digits as its factorization.

3668244449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 50.

The square root of 3668244449 is about 60566.0337895755. The cubic root of 3668244449 is about 1542.2428175147.

The spelling of 3668244449 in words is "three billion, six hundred sixty-eight million, two hundred forty-four thousand, four hundred forty-nine".