1823224 has 32 divisors (see below), whose sum is σ = 3769920. Its totient is φ = 821376.

The previous prime is 1823219. The next prime is 1823231. The reversal of 1823224 is 4223281.

It is a junction number, because it is equal to n+sod(n) for n = 1823195 and 1823204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4702 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (117810).

2^1823224 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 1823224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884960).

1823224 is an abundant number, since it is smaller than the sum of its proper divisors (1946696).

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

1823224 is a wasteful number, since it uses less digits than its factorization.

1823224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 435 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1823224 is about 1350.2681215225. The cubic root of 1823224 is about 122.1649654067.

The spelling of 1823224 in words is "one million, eight hundred twenty-three thousand, two hundred twenty-four".