The 'magic number' Americans say they need to retire comfortably is $1.46 million—how to catch up if you're behind

Data from Northwestern Mutual shows that Americans say they need a bigger number to retire, and they're having trouble getting there..

• Related Stories No two people's financial needs in retirement are exactly the same
• But Americans, on average, seem united about something: They'll need to save more to retire than they previously thought
• U