400004404444 has 24 divisors (see below), whose sum is σ = 703095624000. Its totient is φ = 199120320000.

The previous prime is 400004404417. The next prime is 400004404529. The reversal of 400004404444 is 444404400004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4399444 + ... + 4489444.

It is an arithmetic number, because the mean of its divisors is an integer number (29295651000).

Almost surely, 2^400004404444 is an apocalyptic number.

It is an amenable number.

400004404444 is a deficient number, since it is larger than the sum of its proper divisors (303091219556).

400004404444 is a wasteful number, since it uses less digits than its factorization.

400004404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94893 (or 94891 counting only the distinct ones).

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

Adding to 400004404444 its reverse (444404400004), we get a palindrome (844408804448).

It can be divided in two parts, 40000 and 4404444, that added together give a palindrome (4444444).

The spelling of 400004404444 in words is "four hundred billion, four million, four hundred four thousand, four hundred forty-four".