4044440321 has 2 divisors, whose sum is σ = 4044440322. Its totient is φ = 4044440320.

The previous prime is 4044440297. The next prime is 4044440341. The reversal of 4044440321 is 1230444404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2262334096 + 1782106225 = 47564^2 + 42215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4044440321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4044440341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022220160 + 2022220161.

It is an arithmetic number, because the mean of its divisors is an integer number (2022220161).

Almost surely, 2^4044440321 is an apocalyptic number.

It is an amenable number.

4044440321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044440321 is an equidigital number, since it uses as much as digits as its factorization.

4044440321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 4044440321 is about 63595.9143420393. The cubic root of 4044440321 is about 1593.2581320411.

Adding to 4044440321 its reverse (1230444404), we get a palindrome (5274884725).

The spelling of 4044440321 in words is "four billion, forty-four million, four hundred forty thousand, three hundred twenty-one".