Was Augustus different from a dictator or king?

In my opinion Augustus and the emperors that followed are not like a dictator or a king although they seem to be pretty much the same.

First, a dictator is someone put in charge in case of emergency to rule over the entire place usually by winning a battle. An emperor has to divide the work and power with the senate. Caesar is somewhere in between. Augustus and the others realized one way to get the people and senate to love you is not to do the mistakes Caesar has done as well as adopt the good things. Augustus tried to make himself seem normal like all the others as much as possible. On the other hand, Nero and emperors part of the second dynasty were an exception.
A king would try to rule the conquered land by himself but when Rome became an empire it was split into provinces and each had a governor.

Although they are very similar, having almost the same duties, they are also different.