12263636 has 48 divisors (see below), whose sum is σ = 27699840. Its totient is φ = 4609920.

The previous prime is 12263611. The next prime is 12263651. The reversal of 12263636 is 63636221.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 12263599 and 12263608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8246 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (577080).

Almost surely, 2^12263636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12263636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13849920).

12263636 is an abundant number, since it is smaller than the sum of its proper divisors (15436204).

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

12263636 is a wasteful number, since it uses less digits than its factorization.

12263636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1422 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 12263636 is about 3501.9474582009. The cubic root of 12263636 is about 230.6073174556.

Adding to 12263636 its reverse (63636221), we get a palindrome (75899857).

The spelling of 12263636 in words is "twelve million, two hundred sixty-three thousand, six hundred thirty-six".