Decimal datatype is truncating 1st digit of the number while storing into Parquet file

We declared one of the Hive Parquet table column as Decimal (38,20) .
We have inserted data from one of the intermediate table using sum function with "insert into select " statement.
Sum value is 9389587.19800467 .
Where as it is getting stored as 389587.19800467
First digit of number is getting truncated while it getting stored in Table.