844218472 has 32 divisors (see below), whose sum is σ = 1595635200. Its totient is φ = 418729600.

The previous prime is 844218461. The next prime is 844218493. The reversal of 844218472 is 274812448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868947 + ... + 869917.

It is an arithmetic number, because the mean of its divisors is an integer number (49863600).

Almost surely, 2^844218472 is an apocalyptic number.

It is an amenable number.

844218472 is a deficient number, since it is larger than the sum of its proper divisors (751416728).

844218472 is a wasteful number, since it uses less digits than its factorization.

844218472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737 (or 1733 counting only the distinct ones).

The product of its digits is 114688, while the sum is 40.

The square root of 844218472 is about 29055.4379075587. The cubic root of 844218472 is about 945.1156403187.

The spelling of 844218472 in words is "eight hundred forty-four million, two hundred eighteen thousand, four hundred seventy-two".