No One.
George Washington was the first president, George Herbert Walker Bush was the forty-first, and George Bush (the second "George Bush") was the forty-third.
Three is a number, three hundred is a number, three hundred forty is a number, three hundred forty-two is a number, forty is a number, forty-two is a number, forty-two hundred is a number, two is a number, and two hundred is a number, but three hundred forty-two hundred is not a number.
Washington was forty-three.
The word "forty" is an adjective when indicating a quantity or number, as in "forty students." It can also be a noun when referring to the number itself, as in "I counted to forty."
forty
Forty is a natural number that comes after thirty-nine and before forty-one. It is represented by the numeral 40.
Washington.
Washington.
The number 46 is spelled "forty six", normally hyphenated as "forty-six".
Twenty forty-six
No, it is not!
The written name for the number 43 is forty-three. Its ordinal number is forty-third.