The predecessor of the smallest $8$-digit number is .

Write in words using the International system of numeration.
$438000$

(Four hundred thirty eight thousand/Fourty three thousand eight hundred)

Write in words using the International system of numeration
$1534628$

(Fifteen lakh thirty-four thousand six hundred and twenty-eight/One million five hundred thirty-four thousand six hundred twenty-eight)

Fill in the blank with "greater than", "less than" or "equal to".

$\mathrm{62,67,832}\_\_\_\_\_\mathrm{42,69,832}$

Write the place value of the underlined digit in the following numbers.

$6\underline{4},59,85,015$