Il numero romano MCDXL nel sistema decimale vale: 1440.
MCDXL in latino si scrive mille quadringenti quadraginta,
mentre in italiano millequattrocentoquaranta.
MCDXXI, MCDXXII, MCDXXIII, MCDXXIV, MCDXXV, MCDXXVI, MCDXXVII, MCDXXVIII, MCDXXIX, MCDXXX, MCDXXXI, MCDXXXII, MCDXXXIII, MCDXXXIV, MCDXXXV, MCDXXXVI, MCDXXXVII, MCDXXXVIII, MCDXXXIX, MCDXLI, MCDXLII, MCDXLIII, MCDXLIV, MCDXLV, MCDXLVI, MCDXLVII, MCDXLVIII, MCDXLIX, MCDL, MCDLI, MCDLII, MCDLIII, MCDLIV, MCDLV, MCDLVI, MCDLVII, MCDLVIII, MCDLIX