Il numero romano MCDXXXIX nel sistema decimale vale: 1439.
MCDXXXIX in latino si scrive mille quadringenti triginta novem,
mentre in italiano millequattrocentotrentanove.
MCDXX, MCDXXI, MCDXXII, MCDXXIII, MCDXXIV, MCDXXV, MCDXXVI, MCDXXVII, MCDXXVIII, MCDXXIX, MCDXXX, MCDXXXI, MCDXXXII, MCDXXXIII, MCDXXXIV, MCDXXXV, MCDXXXVI, MCDXXXVII, MCDXXXVIII, MCDXL, MCDXLI, MCDXLII, MCDXLIII, MCDXLIV, MCDXLV, MCDXLVI, MCDXLVII, MCDXLVIII, MCDXLIX, MCDL, MCDLI, MCDLII, MCDLIII, MCDLIV, MCDLV, MCDLVI, MCDLVII, MCDLVIII