442631643404 has 6 divisors (see below), whose sum is σ = 774605375964. Its totient is φ = 221315821700.

The previous prime is 442631643401. The next prime is 442631643409. The reversal of 442631643404 is 404346136244.

It is not an unprimeable number, because it can be changed into a prime (442631643401) by changing a digit.

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 as a sum of consecutive naturals, namely, 55328955422 + ... + 55328955429.

It is an arithmetic number, because the mean of its divisors is an integer number (129100895994).

Almost surely, 2^442631643404 is an apocalyptic number.

It is an amenable number.

442631643404 is a deficient number, since it is larger than the sum of its proper divisors (331973732560).

442631643404 is a wasteful number, since it uses less digits than its factorization.

442631643404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110657910855 (or 110657910853 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 442631643404 its reverse (404346136244), we get a palindrome (846977779648).

The spelling of 442631643404 in words is "four hundred forty-two billion, six hundred thirty-one million, six hundred forty-three thousand, four hundred four".