The sum of the given numbers is 2,139,796.

Would you like more details or have any questions?

Here are some related questions for further exploration:

1. How do you perform addition with multiple large numbers efficiently?
2. What is the role of carrying over in addition, and how does it work with large numbers?
3. How can you verify the accuracy of a large sum?
4. What are some common methods for adding large numbers without a calculator?
5. How does the associative property of addition help in simplifying calculations?

Tip: When adding large numbers, it can be helpful to break them down into smaller parts or round them to simplify the process, then adjust for accuracy.