844425416 has 16 divisors (see below), whose sum is σ = 1584038400. Its totient is φ = 422015184.

The previous prime is 844425397. The next prime is 844425457. The reversal of 844425416 is 614524448.

It is a self number, because there is not a number n which added to its sum of digits gives 844425416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660 + ... + 41483.

It is an arithmetic number, because the mean of its divisors is an integer number (99002400).

Almost surely, 2^844425416 is an apocalyptic number.

It is an amenable number.

844425416 is a deficient number, since it is larger than the sum of its proper divisors (739612984).

844425416 is a wasteful number, since it uses less digits than its factorization.

844425416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49388 (or 49384 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 844425416 is about 29058.9988815857. The cubic root of 844425416 is about 945.1928596793.

The spelling of 844425416 in words is "eight hundred forty-four million, four hundred twenty-five thousand, four hundred sixteen".