Il numero romano MMMDCCCXXXVIII nel sistema decimale vale: 3838.
MMMDCCCXXXVIII in latino si scrive tria milia octingenti triginta octo,
mentre in italiano tremilaottocentotrentotto.
MMMDCCCXIX, MMMDCCCXX, MMMDCCCXXI, MMMDCCCXXII, MMMDCCCXXIII, MMMDCCCXXIV, MMMDCCCXXV, MMMDCCCXXVI, MMMDCCCXXVII, MMMDCCCXXVIII, MMMDCCCXXIX, MMMDCCCXXX, MMMDCCCXXXI, MMMDCCCXXXII, MMMDCCCXXXIII, MMMDCCCXXXIV, MMMDCCCXXXV, MMMDCCCXXXVI, MMMDCCCXXXVII, MMMDCCCXXXIX, MMMDCCCXL, MMMDCCCXLI, MMMDCCCXLII, MMMDCCCXLIII, MMMDCCCXLIV, MMMDCCCXLV, MMMDCCCXLVI, MMMDCCCXLVII, MMMDCCCXLVIII, MMMDCCCXLIX, MMMDCCCL, MMMDCCCLI, MMMDCCCLII, MMMDCCCLIII, MMMDCCCLIV, MMMDCCCLV, MMMDCCCLVI, MMMDCCCLVII