12306256 has 40 divisors (see below), whose sum is σ = 25228544. Its totient is φ = 5806080.

The previous prime is 12306253. The next prime is 12306269. The reversal of 12306256 is 65260321.

It is a self number, because there is not a number n which added to its sum of digits gives 12306256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12306253) by changing a digit.

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, 21040 + ... + 21616.

Almost surely, 2^12306256 is an apocalyptic number.

12306256 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 12306256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12614272).

12306256 is an abundant number, since it is smaller than the sum of its proper divisors (12922288).

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

12306256 is a wasteful number, since it uses less digits than its factorization.

12306256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12306256 is about 3508.0273659138. The cubic root of 12306256 is about 230.8741529495.

Adding to 12306256 its reverse (65260321), we get a palindrome (77566577).

The spelling of 12306256 in words is "twelve million, three hundred six thousand, two hundred fifty-six".