12738436 has 12 divisors (see below), whose sum is σ = 23465680. Its totient is φ = 6033960.

The previous prime is 12738433. The next prime is 12738437. The reversal of 12738436 is 63483721.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12738431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83730 + ... + 83881.

Almost surely, 2^12738436 is an apocalyptic number.

It is an amenable number.

12738436 is a deficient number, since it is larger than the sum of its proper divisors (10727244).

12738436 is a wasteful number, since it uses less digits than its factorization.

12738436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167634 (or 167632 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 12738436 is about 3569.0945630510. The cubic root of 12738436 is about 233.5457865451.

The spelling of 12738436 in words is "twelve million, seven hundred thirty-eight thousand, four hundred thirty-six".