40044440444 has 24 divisors (see below), whose sum is σ = 73142219808. Its totient is φ = 19147082240.

The previous prime is 40044440407. The next prime is 40044440477. The reversal of 40044440444 is 44404444004.

It is a self number, because there is not a number n which added to its sum of digits gives 40044440444.

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, 348824 + ... + 449184.

It is an arithmetic number, because the mean of its divisors is an integer number (3047592492).

Almost surely, 2^40044440444 is an apocalyptic number.

It is an amenable number.

40044440444 is a deficient number, since it is larger than the sum of its proper divisors (33097779364).

40044440444 is a wasteful number, since it uses less digits than its factorization.

40044440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104725 (or 104723 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40044440444 its reverse (44404444004), we get a palindrome (84448884448).

The spelling of 40044440444 in words is "forty billion, forty-four million, four hundred forty thousand, four hundred forty-four".