12438136 has 16 divisors (see below), whose sum is σ = 23529600. Its totient is φ = 6163584.

The previous prime is 12438121. The next prime is 12438149. The reversal of 12438136 is 63183421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5976 + ... + 7783.

It is an arithmetic number, because the mean of its divisors is an integer number (1470600).

Almost surely, 2^12438136 is an apocalyptic number.

It is an amenable number.

12438136 is a deficient number, since it is larger than the sum of its proper divisors (11091464).

12438136 is a wasteful number, since it uses less digits than its factorization.

12438136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13878 (or 13874 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 12438136 is about 3526.7741634531. The cubic root of 12438136 is about 231.6959453245.

The spelling of 12438136 in words is "twelve million, four hundred thirty-eight thousand, one hundred thirty-six".