Finding the Sum

The sum of the first $n$ odd numbers is $n^2$ .
So, answer is $19268^2$ $=\boxed {371255824}$

It forms an arithmetic progression.

The number of terms is $19268$

The first term is $1$

The last term is, $19268*2$ $-1$ $=38535$

$S = \frac{19268}{2}$ $(1+38535)$ $=$ $371255824$