440440000001 has 4 divisors (see below), whose sum is σ = 440938800432. Its totient is φ = 439941199572.

The previous prime is 440439999997. The next prime is 440440000031. The reversal of 440440000001 is 100000044044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440440000001 - 2² = 440439999997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440440000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249398891 + ... + 249400656.

It is an arithmetic number, because the mean of its divisors is an integer number (110234700108).

Almost surely, 2^440440000001 is an apocalyptic number.

It is an amenable number.

440440000001 is a deficient number, since it is larger than the sum of its proper divisors (498800431).

440440000001 is an equidigital number, since it uses as much as digits as its factorization.

440440000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498800430.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 440440000001 its reverse (100000044044), we get a palindrome (540440044045).

The spelling of 440440000001 in words is "four hundred forty billion, four hundred forty million, one", and thus it is an aban number.