40404422044 has 12 divisors (see below), whose sum is σ = 80808844144. Its totient is φ = 17316180864.

The previous prime is 40404422017. The next prime is 40404422063. The reversal of 40404422044 is 44022440404.

40404422044 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1443015073 = 40404422044 / (4 + 0 + 4 + 0 + 4 + 4 + 2 + 2 + 0 + 4 + 4).

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, 721507509 + ... + 721507564.

Almost surely, 2^40404422044 is an apocalyptic number.

It is an amenable number.

40404422044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40404422044 is a wasteful number, since it uses less digits than its factorization.

40404422044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443015084 (or 1443015082 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40404422044 its reverse (44022440404), we get a palindrome (84426862448).

The spelling of 40404422044 in words is "forty billion, four hundred four million, four hundred twenty-two thousand, forty-four".