4000444404044 has 96 divisors (see below), whose sum is σ = 8172806073600. Its totient is φ = 1694056032000.

The previous prime is 4000444403959. The next prime is 4000444404059. The reversal of 4000444404044 is 4404044440004.

It is a self number, because there is not a number n which added to its sum of digits gives 4000444404044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440039939 + ... + 440049029.

It is an arithmetic number, because the mean of its divisors is an integer number (85133396600).

Almost surely, 2^{4000444404044} is an apocalyptic number.

4000444404044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4000444404044 is an abundant number, since it is smaller than the sum of its proper divisors (4172361669556).

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

4000444404044 is a wasteful number, since it uses less digits than its factorization.

4000444404044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815 (or 17813 counting only the distinct ones).

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

Adding to 4000444404044 its reverse (4404044440004), we get a palindrome (8404488844048).

The spelling of 4000444404044 in words is "four trillion, four hundred forty-four million, four hundred four thousand, forty-four".