440444002001 has 2 divisors, whose sum is σ = 440444002002. Its totient is φ = 440444002000.

The previous prime is 440444001983. The next prime is 440444002007. The reversal of 440444002001 is 100200444044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367295390401 + 73148611600 = 606049^2 + 270460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440444002001 is a prime.

It is not a weakly prime, because it can be changed into another prime (440444002007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220222001000 + 220222001001.

It is an arithmetic number, because the mean of its divisors is an integer number (220222001001).

Almost surely, 2^440444002001 is an apocalyptic number.

It is an amenable number.

440444002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

440444002001 is an equidigital number, since it uses as much as digits as its factorization.

440444002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 440444002001 its reverse (100200444044), we get a palindrome (540644446045).

The spelling of 440444002001 in words is "four hundred forty billion, four hundred forty-four million, two thousand, one".