844284816 has 40 divisors (see below), whose sum is σ = 2423411360. Its totient is φ = 281428128.

The previous prime is 844284797. The next prime is 844284827. The reversal of 844284816 is 618482448.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976750 + ... + 977613.

It is an arithmetic number, because the mean of its divisors is an integer number (60585284).

Almost surely, 2^844284816 is an apocalyptic number.

It is an amenable number.

844284816 is an abundant number, since it is smaller than the sum of its proper divisors (1579126544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844284816 is a wasteful number, since it uses less digits than its factorization.

844284816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954380 (or 1954368 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 844284816 is about 29056.5795647044. The cubic root of 844284816 is about 945.1403973817.

It can be divided in two parts, 84 and 4284816, that added together give a square (4284900 = 2070²).

The spelling of 844284816 in words is "eight hundred forty-four million, two hundred eighty-four thousand, eight hundred sixteen".