"Individual investors must make a minimum contribution of €600,000 to the national development fund set up by the government and prove 36 months of residency. Alternatively, there is an expedited route which requires a contribution of €750,000 and evidence of 12 months residency" [1]
The New Zealand Active Investor Plus resident program requires $5m NZD, which is under $3m USD, but that would take everything. There is another program mooted where you buy a business for less than that.
"Individual investors must make a minimum contribution of €600,000 to the national development fund set up by the government and prove 36 months of residency. Alternatively, there is an expedited route which requires a contribution of €750,000 and evidence of 12 months residency" [1]
1 - http://goldenvisas.com/malta