40044004444 has 12 divisors (see below), whose sum is σ = 70079281384. Its totient is φ = 20021352624.

The previous prime is 40044004397. The next prime is 40044004453. The reversal of 40044004444 is 44440044004.

It is a super-2 number, since 2×40044004444² (a number of 22 digits) contains 22 as substring.

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, 7227 + ... + 283090.

Almost surely, 2^40044004444 is an apocalyptic number.

It is an amenable number.

40044004444 is a deficient number, since it is larger than the sum of its proper divisors (30035276940).

40044004444 is a wasteful number, since it uses less digits than its factorization.

40044004444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324804 (or 324802 counting only the distinct ones).

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

Adding to 40044004444 its reverse (44440044004), we get a palindrome (84484048448).

The spelling of 40044004444 in words is "forty billion, forty-four million, four thousand, four hundred forty-four".