12443256 has 72 divisors (see below), whose sum is σ = 39213720. Its totient is φ = 3554208.

The previous prime is 12443251. The next prime is 12443261. The reversal of 12443256 is 65234421.

It is an interprime number because it is at equal distance from previous prime (12443251) and next prime (12443261).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443251) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1765 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (544635).

Almost surely, 2^12443256 is an apocalyptic number.

It is a pronic number, being equal to 3527×3528.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12443256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19606860).

12443256 is an abundant number, since it is smaller than the sum of its proper divisors (26770464).

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

12443256 is a wasteful number, since it uses less digits than its factorization.

12443256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3539 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 12443256 is about 3527.4999645641. The cubic root of 12443256 is about 231.7277325233.

Adding to 12443256 its reverse (65234421), we get a palindrome (77677677).

The spelling of 12443256 in words is "twelve million, four hundred forty-three thousand, two hundred fifty-six".