Ezra 2:64 Kabbalah

כָּל־הַקָּהָ֖ל כְּאֶחָ֑ד אַרְבַּ֣ע רִבּ֔וֹא אַלְפַּ֖יִם שְׁלֹשׁ־מֵא֥וֹת שִׁשִּֽׁים׃

The whole congregation together was forty and two thousand three hundred and threescore,

Read kabbalistic (mystical) interpretation of Ezra 2:64: and classical mystical sources.