844228261 has 8 divisors (see below), whose sum is σ = 849726720. Its totient is φ = 838738848.

The previous prime is 844228237. The next prime is 844228267. The reversal of 844228261 is 162822448.

844228261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 844228261 - 2⁹ = 844227749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 844228261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844228267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381420 + ... + 383626.

It is an arithmetic number, because the mean of its divisors is an integer number (106215840).

Almost surely, 2^844228261 is an apocalyptic number.

It is an amenable number.

844228261 is a deficient number, since it is larger than the sum of its proper divisors (5498459).

844228261 is a wasteful number, since it uses less digits than its factorization.

844228261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523.

The product of its digits is 49152, while the sum is 37.

The square root of 844228261 is about 29055.6063609074. The cubic root of 844228261 is about 945.1192932836.

The spelling of 844228261 in words is "eight hundred forty-four million, two hundred twenty-eight thousand, two hundred sixty-one".