516401312 has 24 divisors (see below), whose sum is σ = 1161903456. Its totient is φ = 221314752.

The previous prime is 516401297. The next prime is 516401321. The reversal of 516401312 is 213104615.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152458 + ... + 1152905.

It is an arithmetic number, because the mean of its divisors is an integer number (48412644).

Almost surely, 2^516401312 is an apocalyptic number.

It is an amenable number.

516401312 is an abundant number, since it is smaller than the sum of its proper divisors (645502144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516401312 is a wasteful number, since it uses less digits than its factorization.

516401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305380 (or 2305372 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 516401312 is about 22724.4650542097. The cubic root of 516401312 is about 802.2858126055.

Adding to 516401312 its reverse (213104615), we get a palindrome (729505927).

The spelling of 516401312 in words is "five hundred sixteen million, four hundred one thousand, three hundred twelve".