Il numero 40021, quarantamilaventuno in Italiano, in Inglese si dice forty thousand twenty-one.
Il numero ordinale 40021° in inglese si dice forty thousand twenty-first.
40012: forty thousand twelve
40013: forty thousand thirteen
40014: forty thousand fourteen
40015: forty thousand fifteen
40016: forty thousand sixteen
40017: forty thousand seventeen
40018: forty thousand eighteen
40019: forty thousand nineteen
40020: forty thousand twenty
40022: forty thousand twenty-two
40023: forty thousand twenty-three
40024: forty thousand twenty-four
40025: forty thousand twenty-five
40026: forty thousand twenty-six
40027: forty thousand twenty-seven
40028: forty thousand twenty-eight
40029: forty thousand twenty-nine
40030: forty thousand thirty