This question cannot be answered sensibly. A square mile is a measure of area, with dimensions [L2]. A mile is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
260,558 square miles
Madagascar is approximately 226,917 square miles in size.
58.4 square miles.
India - 1,269,210 square miles.1,269,219 square miles.
364,764 square miles.
... like you said... its 149417483 square miles...
Guatemala - 42,042.65 square miles.
1,669,807.665 square miles.
0.015625 square miles.
0.00457774 square miles.
143,243.901 square miles
2,966,152.61 square miles.