12242256 has 80 divisors (see below), whose sum is σ = 35581056. Its totient is φ = 3598848.

The previous prime is 12242221. The next prime is 12242257. The reversal of 12242256 is 65224221.

It is a happy number.

12242256 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13926 + ... + 14778.

Almost surely, 2^12242256 is an apocalyptic number.

12242256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12242256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17790528).

12242256 is an abundant number, since it is smaller than the sum of its proper divisors (23338800).

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

12242256 is a wasteful number, since it uses less digits than its factorization.

12242256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 894 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 12242256 is about 3498.8935393921. The cubic root of 12242256 is about 230.4732285557.

Adding to 12242256 its reverse (65224221), we get a palindrome (77466477).

The spelling of 12242256 in words is "twelve million, two hundred forty-two thousand, two hundred fifty-six".