1223244 has 36 divisors (see below), whose sum is σ = 3374280. Its totient is φ = 370560.

The previous prime is 1223237. The next prime is 1223263. The reversal of 1223244 is 4423221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (93730).

2^1223244 is an apocalyptic number.

It is an amenable number.

1223244 is an abundant number, since it is smaller than the sum of its proper divisors (2151036).

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

1223244 is a wasteful number, since it uses less digits than its factorization.

1223244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110 (or 3105 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 1223244 is about 1106.0036166306. The cubic root of 1223244 is about 106.9475971310.

Adding to 1223244 its reverse (4423221), we get a palindrome (5646465).

The spelling of 1223244 in words is "one million, two hundred twenty-three thousand, two hundred forty-four".