844134916 has 27 divisors (see below), whose sum is σ = 1505313621. Its totient is φ = 414193824.

The previous prime is 844134911. The next prime is 844134917. The reversal of 844134916 is 619431448.

The square root of 844134916 is 29054.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 479172100 + 364962816 = 21890^2 + 19104^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844134911) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 4241785 + ... + 4241983.

Almost surely, 2^844134916 is an apocalyptic number.

844134916 is the 29054-th square number.

It is an amenable number.

844134916 is a deficient number, since it is larger than the sum of its proper divisors (661178705).

844134916 is an equidigital number, since it uses as much as digits as its factorization.

844134916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 274 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The cubic root of 844134916 is about 945.0844585451.

Multiplying 844134916 by its product of digits (82944), we get a square (70015926472704 = 8367552²).

The spelling of 844134916 in words is "eight hundred forty-four million, one hundred thirty-four thousand, nine hundred sixteen".