1844224 has 22 divisors (see below), whose sum is σ = 3688694. Its totient is φ = 921600.

The previous prime is 1844207. The next prime is 1844243. The reversal of 1844224 is 4224481.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 589824 = 1120^2 + 768^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124 + ... + 1924.

2^1844224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1844224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1844347).

1844224 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1844224 is an equidigital number, since it uses as much as digits as its factorization.

1844224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1803 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 1844224 is about 1358.0220911311. The cubic root of 1844224 is about 122.6322104442.

The spelling of 1844224 in words is "one million, eight hundred forty-four thousand, two hundred twenty-four".