1.4 million, and the vast majority of those are low-skill, low-wage employees who are in no way related to the situations being discussed in this thread.
When I was at the halfway house out of prison, not 1 person went to work at Amazon's warehouse. We went to less pay sorting human waste at the recycling plant in 120 heat before that job, because everyone knows how bad it is. Good luck keeping your labour requirements met Amazon.