What's the default DPI on Android?

I'm curious, could you tell me what the default DPI, or Dots Per Inch, setting is on an Android device? As a tech-savvy individual, I'm always looking to understand the finer details of the devices I use, and I've noticed that DPI can have a significant impact on screen clarity and performance. So, what's the standard DPI that comes pre-set on an Android device, and is there any way to adjust it to suit my preferences?