844224 has 28 divisors (see below), whose sum is σ = 2234184. Its totient is φ = 281344.

The previous prime is 844201. The next prime is 844243. The reversal of 844224 is 422448.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 844194 and 844203.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 844224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007 + ... + 2390.

2⁸⁴⁴²²⁴ is an apocalyptic number.

It is an amenable number.

844224 is an abundant number, since it is smaller than the sum of its proper divisors (1389960).

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

844224 is a wasteful number, since it uses less digits than its factorization.

844224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4402 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 844224 is about 918.8166302370. The cubic root of 844224 is about 94.5117703208.

The spelling of 844224 in words is "eight hundred forty-four thousand, two hundred twenty-four".