1822244 has 24 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 840224.

The previous prime is 1822241. The next prime is 1822259. The reversal of 1822244 is 4422281.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1822241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327 + ... + 3009.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1822244 is an apocalyptic number.

It is an amenable number.

1822244 is a deficient number, since it is larger than the sum of its proper divisors (1625116).

1822244 is a wasteful number, since it uses less digits than its factorization.

1822244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 1822244 is about 1349.9051818554. The cubic root of 1822244 is about 122.1430732122.

The spelling of 1822244 in words is "one million, eight hundred twenty-two thousand, two hundred forty-four".