(4.38 X 10^30) / 1.32 X 10^25 = 3.32 X 10^5, or close enough to 333,000.
For the sun to have one billion times the mass of the earth, even though it has 1.3 million times the volume of the earth, the sun would have to have an average density of nearly 770 times that of the earth. The average density of the sun is only 1.4, while the average density of the earth is 5.52.
What is the density of the core of the Sun, where fusion is taking place?