12438036 has 60 divisors (see below), whose sum is σ = 35028532. Its totient is φ = 3825792.

The previous prime is 12437969. The next prime is 12438043. The reversal of 12438036 is 63083421.

It is a happy number.

12438036 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 can be written as a sum of positive squares in 2 ways, for example, as 5904900 + 6533136 = 2430^2 + 2556^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2736 + ... + 5688.

Almost surely, 2^12438036 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 12438036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17514266).

12438036 is an abundant number, since it is smaller than the sum of its proper divisors (22590496).

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

12438036 is a wasteful number, since it uses less digits than its factorization.

12438036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12438036 is about 3526.7599861629. The cubic root of 12438036 is about 231.6953243939.

The spelling of 12438036 in words is "twelve million, four hundred thirty-eight thousand, thirty-six".