12438

12438 is a natural number that sits between 12437 and 12439. It is even and composite.

In prime factorization, 12438 = 2 × 3^2 × 691. The positive divisors are 1, 2, 3, 6, 9, 18, 691, 1382, 2073, 4146, 6219, and 12438, totaling 12 divisors. The sum of all divisors is 26,988, so the sum of proper divisors is 14,550. Because sigma(n) > 2n (26,988 > 24,876), 12438 is an abundant number; its abundance is 2,112. In binary, 12438 equals 11000010010110_2. It is also expressible as 18 × 691, highlighting its factor structure.

In non-mathematical contexts, 12438 may appear as a catalog or model number, and in some countries as a postal or administrative code. Its significance in such contexts is determined by the issuing organization; in general, it does not denote a universally recognized entity.