400224224044 has 24 divisors (see below), whose sum is σ = 701415233568. Its totient is φ = 199820065920.

The previous prime is 400224224039. The next prime is 400224224053. The reversal of 400224224044 is 440422422004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790282 + ... + 8835694.

It is an arithmetic number, because the mean of its divisors is an integer number (29225634732).

Almost surely, 2^400224224044 is an apocalyptic number.

It is an amenable number.

400224224044 is a deficient number, since it is larger than the sum of its proper divisors (301191009524).

400224224044 is a wasteful number, since it uses less digits than its factorization.

400224224044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48585 (or 48583 counting only the distinct ones).

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

Adding to 400224224044 its reverse (440422422004), we get a palindrome (840646646048).

The spelling of 400224224044 in words is "four hundred billion, two hundred twenty-four million, two hundred twenty-four thousand, forty-four".