4400021408044 has 24 divisors (see below), whose sum is σ = 7732754055936. Its totient is φ = 2190677682000.

The previous prime is 4400021408011. The next prime is 4400021408113. The reversal of 4400021408044 is 4408041200044.

It is a junction number, because it is equal to n+sod(n) for n = 4400021407997 and 4400021408015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613392 + ... + 3029239.

It is an arithmetic number, because the mean of its divisors is an integer number (322198085664).

Almost surely, 2^{4400021408044} is an apocalyptic number.

It is an amenable number.

4400021408044 is a deficient number, since it is larger than the sum of its proper divisors (3332732647892).

4400021408044 is a wasteful number, since it uses less digits than its factorization.

4400021408044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643917 (or 3643915 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 4400021408044 its reverse (4408041200044), we get a palindrome (8808062608088).

The spelling of 4400021408044 in words is "four trillion, four hundred billion, twenty-one million, four hundred eight thousand, forty-four".