40404404444 has 12 divisors (see below), whose sum is σ = 71436653904. Its totient is φ = 19993931904.

The previous prime is 40404404431. The next prime is 40404404477. The reversal of 40404404444 is 44440440404.

It is a self number, because there is not a number n which added to its sum of digits gives 40404404444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52067144 + ... + 52067919.

It is an arithmetic number, because the mean of its divisors is an integer number (5953054492).

Almost surely, 2^40404404444 is an apocalyptic number.

It is an amenable number.

40404404444 is a deficient number, since it is larger than the sum of its proper divisors (31032249460).

40404404444 is a wasteful number, since it uses less digits than its factorization.

40404404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104135164 (or 104135162 counting only the distinct ones).

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

Adding to 40404404444 its reverse (44440440404), we get a palindrome (84844844848).

The spelling of 40404404444 in words is "forty billion, four hundred four million, four hundred four thousand, four hundred forty-four".