516304140 has 96 divisors (see below), whose sum is σ = 1581914880. Its totient is φ = 124780800.

The previous prime is 516304123. The next prime is 516304153. The reversal of 516304140 is 41403615.

It is a super-2 number, since 2×516304140² = 533139929962279200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 516304140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255735 + ... + 257745.

It is an arithmetic number, because the mean of its divisors is an integer number (16478280).

Almost surely, 2^516304140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516304140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790957440).

516304140 is an abundant number, since it is smaller than the sum of its proper divisors (1065610740).

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

516304140 is a wasteful number, since it uses less digits than its factorization.

516304140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 516304140 is about 22722.3269054910. The cubic root of 516304140 is about 802.2354870121.

Adding to 516304140 its reverse (41403615), we get a palindrome (557707755).

The spelling of 516304140 in words is "five hundred sixteen million, three hundred four thousand, one hundred forty".