So what is Piovere? It's the ratio of the two most famous transcendental numbers; it's pi over e.

Want more info on the numbers pi and e?

Why, you may wonder, didn't the Capitol architects make the 'H' dimension go all the way to the top of the statue? Well, besides not looking very good, they didn't know what size statue would be placed on the base when the building was designed. 

Does this mean that piovere is one of the very fundamental numbers in the universe?  I really doubt it.