I have remarked that 464 does not seem to be in the Torah. This is perhaps true as a number, relating it to the numbers 288-420, not as a number, a gematria, per se. The gematria of יְהִי אוֹר
is 232, one half of 464. Grammatically, it refers to a future event, "there will be light," in the ultimate creation act: וַיֹּאמֶר אֱלֹהִים, יְהִי אוֹר; וַיְהִי-אוֹר.
It seems that 232 being half 464 fits a pattern. The 210 years of Galut Mitzrayim are one half of 420, the 137 years of Yismael are one half of 274, the 144 years of "Esav" are one half of 288, the 175 years of Avraham are one half of 351 years.