Not really, when you factor in inflation, unless you're planning on living in abject poverty your whole life or not planning on living very long. e.g., Vietnam

Not really, when you factor in inflation, unless you're planning on living in abject poverty your whole life or not planning on living very long. e.g., Vietnam is a livable place and GDP per capita is ~$2600. That'd get you a very modest living. GDP/capita is also up 2x from 10 years ago and 10x from 20 years ago. You could maybe squeak out 20 years with very modest living and few unplanned expenses and assuming the economy and thus cost of living doesn't grow tremendously (like it likely will). Somalia would give you a little more value for your money. But I think if someone suddenly had that much money in Somalia, they'd probably be getting out of Somalia or hoping nobody found out.