400022200444 has 12 divisors (see below), whose sum is σ = 703095790600. Its totient is φ = 199137688848.

The previous prime is 400022200381. The next prime is 400022200463. The reversal of 400022200444 is 444002220004.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 218351814 + ... + 218353645.

Almost surely, 2^400022200444 is an apocalyptic number.

It is an amenable number.

400022200444 is a deficient number, since it is larger than the sum of its proper divisors (303073590156).

400022200444 is a wasteful number, since it uses less digits than its factorization.

400022200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436705692 (or 436705690 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 400022200444 its reverse (444002220004), we get a palindrome (844024420448).

The spelling of 400022200444 in words is "four hundred billion, twenty-two million, two hundred thousand, four hundred forty-four".