440440400441 has 4 divisors (see below), whose sum is σ = 440451398772. Its totient is φ = 440429402112.

The previous prime is 440440400437. The next prime is 440440400531. The reversal of 440440400441 is 144004044044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112775744041 + 327664656400 = 335821^2 + 572420^2 .

It is a cyclic number.

It is not a de Polignac number, because 440440400441 - 2² = 440440400437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440440400041) 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, 5438876 + ... + 5519261.

It is an arithmetic number, because the mean of its divisors is an integer number (110112849693).

Almost surely, 2^440440400441 is an apocalyptic number.

It is an amenable number.

440440400441 is a deficient number, since it is larger than the sum of its proper divisors (10998331).

440440400441 is a wasteful number, since it uses less digits than its factorization.

440440400441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998330.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 440440400441 its reverse (144004044044), we get a palindrome (584444444485).

The spelling of 440440400441 in words is "four hundred forty billion, four hundred forty million, four hundred thousand, four hundred forty-one".