414

This number is a composite.

414 x 3⁴¹⁴ + 1 is prime. [Dubner]

The exponential factored form of 414 (2 x 3² x 23) consists of three 2's and two 3's; whereas its expanded form (2 x 3 x 3 x 23) has two 2's and three 3's. [Trotter]

(There is one curio for this number that has not yet been approved by an editor.)