844224229 has 4 divisors (see below), whose sum is σ = 846055980. Its totient is φ = 842392480.

The previous prime is 844224211. The next prime is 844224247. The reversal of 844224229 is 922422448.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (844224211) and next prime (844224247).

It can be written as a sum of positive squares in 2 ways, for example, as 199572129 + 644652100 = 14127^2 + 25390^2 .

It is a cyclic number.

It is not a de Polignac number, because 844224229 - 2¹⁵ = 844191461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844224259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915184 + ... + 916105.

It is an arithmetic number, because the mean of its divisors is an integer number (211513995).

Almost surely, 2^844224229 is an apocalyptic number.

It is an amenable number.

844224229 is a deficient number, since it is larger than the sum of its proper divisors (1831751).

844224229 is a wasteful number, since it uses less digits than its factorization.

844224229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831750.

The product of its digits is 73728, while the sum is 37.

The square root of 844224229 is about 29055.5369766246. The cubic root of 844224229 is about 945.1177886640.

The spelling of 844224229 in words is "eight hundred forty-four million, two hundred twenty-four thousand, two hundred twenty-nine".