4400000440405 has 8 divisors (see below), whose sum is σ = 5286021058872. Its totient is φ = 3515986665408.

The previous prime is 4400000440403. The next prime is 4400000440441. The reversal of 4400000440405 is 5040440000044.

It can be written as a sum of positive squares in 4 ways, for example, as 2425438693924 + 1974561746481 = 1557382^2 + 1405191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4400000440405 - 2¹ = 4400000440403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4400000440405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400000440403) 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 in 7 ways as a sum of consecutive naturals, for example, 501706042 + ... + 501714811.

It is an arithmetic number, because the mean of its divisors is an integer number (660752632359).

Almost surely, 2^{4400000440405} is an apocalyptic number.

It is an amenable number.

4400000440405 is a deficient number, since it is larger than the sum of its proper divisors (886020618467).

4400000440405 is a wasteful number, since it uses less digits than its factorization.

4400000440405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003421735.

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 4400000440405 its reverse (5040440000044), we get a palindrome (9440440440449).

The spelling of 4400000440405 in words is "four trillion, four hundred billion, four hundred forty thousand, four hundred five".