400000004044 has 12 divisors (see below), whose sum is σ = 701192515464. Its totient is φ = 199659285344.

The previous prime is 400000004039. The next prime is 400000004057. The reversal of 400000004044 is 440400000004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85176529 + ... + 85181224.

It is an arithmetic number, because the mean of its divisors is an integer number (58432709622).

Almost surely, 2^400000004044 is an apocalyptic number.

It is an amenable number.

400000004044 is a deficient number, since it is larger than the sum of its proper divisors (301192511420).

400000004044 is a wasteful number, since it uses less digits than its factorization.

400000004044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170358344 (or 170358342 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 400000004044 its reverse (440400000004), we get a palindrome (840400004048).

The spelling of 400000004044 in words is "four hundred billion, four thousand, forty-four".