440405043445 has 8 divisors (see below), whose sum is σ = 533162920536. Its totient is φ = 349206122496.

The previous prime is 440405043439. The next prime is 440405043469. The reversal of 440405043445 is 544340504044.

It can be written as a sum of positive squares in 4 ways, for example, as 23654747601 + 416750295844 = 153801^2 + 645562^2 .

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 440405043445 - 2³ = 440405043437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389738412 + ... + 389739541.

It is an arithmetic number, because the mean of its divisors is an integer number (66645365067).

Almost surely, 2^440405043445 is an apocalyptic number.

It is an amenable number.

440405043445 is a deficient number, since it is larger than the sum of its proper divisors (92757877091).

440405043445 is a wasteful number, since it uses less digits than its factorization.

440405043445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779478071.

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 440405043445 its reverse (544340504044), we get a palindrome (984745547489).

The spelling of 440405043445 in words is "four hundred forty billion, four hundred five million, forty-three thousand, four hundred forty-five".