426

426 = 2 x 3 x 71.

As the product of three distinct primes, 426 is known as a sphenic number.

426 is a stella octangula number. The stella octangula is a stellation of the octahedron.

426 is a number such that 10⁴²⁶ + 3 is a prime.

426 is a multiple of 6 that contains 6 in its decimal representation.

In the 1979 movie Alien, the spaceship Nostromo goes to the desolate planetoid LV-426.

Source: What's Special About This Number?