426:16+627282

To solve the expression \( 426:16 + 627282 \), we first interpret \( 426:16 \) as \( 426 \div 16 \).

Calculating \( 426 \div 16 \):

\[ 426 \div 16 = 26.625 \]

Now, add that to \( 627282 \):

\[ 26.625 + 627282 = 627308.625 \]

So, the final result is:

\[ \boxed{627308.625} \]