400000444444 has 12 divisors (see below), whose sum is σ = 700016751000. Its totient is φ = 199995658448.

The previous prime is 400000444397. The next prime is 400000444447. The reversal of 400000444444 is 444444000004.

400000444444 is a modest number, since divided by 444444 gives 400000 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000444447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 939799 + ... + 1297390.

It is an arithmetic number, because the mean of its divisors is an integer number (58334729250).

Almost surely, 2^400000444444 is an apocalyptic number.

It is an amenable number.

400000444444 is a deficient number, since it is larger than the sum of its proper divisors (300016306556).

400000444444 is a wasteful number, since it uses less digits than its factorization.

400000444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281892 (or 2281890 counting only the distinct ones).

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

Adding to 400000444444 its reverse (444444000004), we get a palindrome (844444444448).

The spelling of 400000444444 in words is "four hundred billion, four hundred forty-four thousand, four hundred forty-four".