Il numero romano MMDCXL nel sistema decimale vale: 2640.
MMDCXL in latino si scrive duo milia sescenti quadraginta,
mentre in italiano duemilaseicentoquaranta.
MMDCXXI, MMDCXXII, MMDCXXIII, MMDCXXIV, MMDCXXV, MMDCXXVI, MMDCXXVII, MMDCXXVIII, MMDCXXIX, MMDCXXX, MMDCXXXI, MMDCXXXII, MMDCXXXIII, MMDCXXXIV, MMDCXXXV, MMDCXXXVI, MMDCXXXVII, MMDCXXXVIII, MMDCXXXIX, MMDCXLI, MMDCXLII, MMDCXLIII, MMDCXLIV, MMDCXLV, MMDCXLVI, MMDCXLVII, MMDCXLVIII, MMDCXLIX, MMDCL, MMDCLI, MMDCLII, MMDCLIII, MMDCLIV, MMDCLV, MMDCLVI, MMDCLVII, MMDCLVIII, MMDCLIX