400044404404 has 6 divisors (see below), whose sum is σ = 700077707714. Its totient is φ = 200022202200.

The previous prime is 400044404399. The next prime is 400044404423. The reversal of 400044404404 is 404404440004.

It can be written as a sum of positive squares in only one way, i.e., 243147610000 + 156896794404 = 493100^2 + 396102^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 50005550547 + ... + 50005550554.

Almost surely, 2^400044404404 is an apocalyptic number.

It is an amenable number.

400044404404 is a deficient number, since it is larger than the sum of its proper divisors (300033303310).

400044404404 is a wasteful number, since it uses less digits than its factorization.

400044404404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100011101105 (or 100011101103 counting only the distinct ones).

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

Adding to 400044404404 its reverse (404404440004), we get a palindrome (804448844408).

The spelling of 400044404404 in words is "four hundred billion, forty-four million, four hundred four thousand, four hundred four".