Is Berlin the only megacity in germany ?

when Berlin comes in my mind i think about 3,4 million inhabitans in the city proper and 4,2 million inhabitans in the suburban rail (s Bahn area) you can take the S7 from Potsdam then you can travel to strausberg in the east via charlottenburg its a distance from 60 km !

or you can take the S43 in Königs wusterhausen (an southeastern suburb of berlin and ride to Oranienburg in the far north of berlin , it is also an distance from 55-60 km to ride the S Train !

Berlin is the politcal capital of Germany
Berlin has MTV , Siemens and other big companies
Berlin has a big cultural scene with his Cinemas off and off off scene theatres

Berlin have young districts with large urban life (Kreuzberg 36; Prenzlauer Berg and Friedrichshain )with its restaurants, bars , and coffee shops

So are you agree with me that germanys only Megacity is Berlin !?

Your comments please >