400200442444 has 24 divisors (see below), whose sum is σ = 775422301248. Its totient is φ = 179194226640.

The previous prime is 400200442427. The next prime is 400200442489. The reversal of 400200442444 is 444244002004.

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, 67873654 + ... + 67879549.

It is an arithmetic number, because the mean of its divisors is an integer number (32309262552).

Almost surely, 2^400200442444 is an apocalyptic number.

400200442444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400200442444 is a deficient number, since it is larger than the sum of its proper divisors (375221858804).

400200442444 is a wasteful number, since it uses less digits than its factorization.

400200442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135753285 (or 135753283 counting only the distinct ones).

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

Adding to 400200442444 its reverse (444244002004), we get a palindrome (844444444448).

The spelling of 400200442444 in words is "four hundred billion, two hundred million, four hundred forty-two thousand, four hundred forty-four".