Il numero 4000, quattromila in Italiano, in Inglese si dice four thousand.
Il numero ordinale 4000° in inglese si dice four thousandth.
3991: three thousand nine hundred ninety-one
3992: three thousand nine hundred ninety-two
3993: three thousand nine hundred ninety-three
3994: three thousand nine hundred ninety-four
3995: three thousand nine hundred ninety-five
3996: three thousand nine hundred ninety-six
3997: three thousand nine hundred ninety-seven
3998: three thousand nine hundred ninety-eight
3999: three thousand nine hundred ninety-nine
4001: four thousand one
4002: four thousand two
4003: four thousand three
4004: four thousand four
4005: four thousand five
4006: four thousand six
4007: four thousand seven
4008: four thousand eight
4009: four thousand nine