400000804444 has 6 divisors (see below), whose sum is σ = 700001407784. Its totient is φ = 200000402220.

The previous prime is 400000804403. The next prime is 400000804531. The reversal of 400000804444 is 444408000004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000100552 + ... + 50000100559.

Almost surely, 2^400000804444 is an apocalyptic number.

It is an amenable number.

400000804444 is a deficient number, since it is larger than the sum of its proper divisors (300000603340).

400000804444 is a wasteful number, since it uses less digits than its factorization.

400000804444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100000201115 (or 100000201113 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 400000804444 its reverse (444408000004), we get a palindrome (844408804448).

The spelling of 400000804444 in words is "four hundred billion, eight hundred four thousand, four hundred forty-four".