40404004444 has 12 divisors (see below), whose sum is σ = 70775068000. Its totient is φ = 20182556448.

The previous prime is 40404004441. The next prime is 40404004451. The reversal of 40404004444 is 44440040404.

It is a super-2 number, since 2×40404004444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404004441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4856769 + ... + 4865080.

Almost surely, 2^40404004444 is an apocalyptic number.

It is an amenable number.

40404004444 is a deficient number, since it is larger than the sum of its proper divisors (30371063556).

40404004444 is a wasteful number, since it uses less digits than its factorization.

40404004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722892 (or 9722890 counting only the distinct ones).

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

Adding to 40404004444 its reverse (44440040404), we get a palindrome (84844044848).

The spelling of 40404004444 in words is "forty billion, four hundred four million, four thousand, four hundred forty-four".