אֵ֛לֶּה מִשְׁפְּחֹ֥ת בְּנֵֽי־גָ֖ד לִפְקֻדֵיהֶ֑ם אַרְבָּעִ֥ים אֶ֖לֶף וַחֲמֵ֥שׁ מֵאֽוֹת׃ (ס)
These are the families of the sons of Gad according to those that were numbered of them, forty thousand and five hundred.
Read kabbalistic (mystical) interpretation of Numbers 26:18: and classical mystical sources.