That is the correct spelling (forty thousand) for the numeral 40000 or 40,000.
five thousand and forty one
Forty-five thousand.
Three thousand and forty.
forty three thousand
Five thousand forty one
One hundred forty thousand
Forty-eight thousand, two
In words . . . . . "forty thousand". In numbers . . . 40,000 .
five thousand and forty one
forty-seven thousand.
40,000.00 = forty thousand.
thirty thousand, forty.
Forty-five thousand.
Forty-nine thousand
Forty-six thousand.
Two hundred and forty thousand.
forty three thousand