Write each place value in order: millions, thousands, ones.<br><br>
&bull; Six million = 6,000,000<br>
&bull; Four hundred and fifty-two thousand = 452,000<br>
&bull; One = 1<br>
&bull; Total = 6,000,000 + 452,000 + 1 = 6,452,001<br><br>
Final Answer: 6,452,001