Answer: 416, 622
Step-by-step explanation:
First, let's look at the hundred thousands place.
We have 4 hundred thousand, which can be rewritten as 400,000.
Then, we have our ten thousand place in which we have sixteen thousand, which can be rewritten as 16,000.
Next, we have our hundreds place. Here, we have four-hundred, or 400.
After that, we have 21 tens, which can be rewritten as 210.
Lastly, we have 12 ones.
Now, if we add all of these together, we get:
400,000 + 16,000 + 400 + 210 + 12 = <em>416,622</em>
(Hope this helps!)