In all U.S. states you have a legal right to reveal and discuss your pay and benefits with other co-workers and it is illegal for your employer to fire, discipline or otherwise disadvantage you for it.
There is also a right to promote or discuss unionization, or to engage in any sort of discussion of working conditions in the workplace, and again your employer cannot discipline you.
This is under a law called the NLRA.
Employers may try to ignore that law, though, and the government can't be trusted to always uphold these rights. So also be wise.
Also, under the FLSA law, a company is legally required to pay your regular wages multiplied by 1.5 for each hour of work above 40 hours a week for most jobs. This also applies to salaried white collar workers. But not to salaried workers who work jobs on a specific list and make over $684/week.