440004000001 has 2 divisors, whose sum is σ = 440004000002. Its totient is φ = 440004000000.

The previous prime is 440003999999. The next prime is 440004000011. The reversal of 440004000001 is 100000400044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439832913601 + 171086400 = 663199^2 + 13080^2 .

It is a cyclic number.

It is not a de Polignac number, because 440004000001 - 2¹ = 440003999999 is a prime.

Together with 440003999999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (440004000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220002000000 + 220002000001.

It is an arithmetic number, because the mean of its divisors is an integer number (220002000001).

Almost surely, 2^440004000001 is an apocalyptic number.

It is an amenable number.

440004000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

440004000001 is an equidigital number, since it uses as much as digits as its factorization.

440004000001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 440004000001 its reverse (100000400044), we get a palindrome (540004400045).

The spelling of 440004000001 in words is "four hundred forty billion, four million, one", and thus it is an aban number.