One thousand nine hundred forty-five.
With zeroes after the decimal point, the numeral is simply "forty thousand three hundred". As a dollar amount, it is "forty thousand three hundred dollars and no cents".
forty-two thousand, six hundred sixty-seven
Forty five thousand, three hundred assuming decimal is at the end.
One hundred forty thousand, one hundred twenty-five
Two hundred ninety-three thousand nine hundred forty-nine millionths.
7,045,840,307 and seven billion, forty-five million, eight hundred forty thousand, three hundred seven.
$47,646. (BTW, if you say and, that usually means decimal. Say it like this: Forty-seven thousand, six hundred forty six dollars. )
It is forty seven thousand three hundred eighty five hundred thousandths.