1223436 has 24 divisors (see below), whose sum is σ = 2922304. Its totient is φ = 398160.

The previous prime is 1223419. The next prime is 1223437. The reversal of 1223436 is 6343221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1223437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 1701.

2^1223436 is an apocalyptic number.

It is an amenable number.

1223436 is an abundant number, since it is smaller than the sum of its proper divisors (1698868).

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

1223436 is a wasteful number, since it uses less digits than its factorization.

1223436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421 (or 2419 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1223436 is about 1106.0904122177. The cubic root of 1223436 is about 106.9531923255.

Adding to 1223436 its reverse (6343221), we get a palindrome (7566657).

The spelling of 1223436 in words is "one million, two hundred twenty-three thousand, four hundred thirty-six".