Il numero romano CDXLVI nel sistema decimale vale: 446.
CDXLVI in latino si scrive quadringenti quadraginta sex,
mentre in italiano quattrocentoquarantasei.
CDXXVII, CDXXVIII, CDXXIX, CDXXX, CDXXXI, CDXXXII, CDXXXIII, CDXXXIV, CDXXXV, CDXXXVI, CDXXXVII, CDXXXVIII, CDXXXIX, CDXL, CDXLI, CDXLII, CDXLIII, CDXLIV, CDXLV, CDXLVII, CDXLVIII, CDXLIX, CDL, CDLI, CDLII, CDLIII, CDLIV, CDLV, CDLVI, CDLVII, CDLVIII, CDLIX, CDLX, CDLXI, CDLXII, CDLXIII, CDLXIV, CDLXV