Numbers 2:19 Midrash

וּצְבָא֖וֹ וּפְקֻדֵיהֶ֑ם אַרְבָּעִ֥ים אֶ֖לֶף וַחֲמֵ֥שׁ מֵאֽוֹת׃

and his host, and those that were numbered of them, forty thousand and five hundred;