516680240 has 40 divisors (see below), whose sum is σ = 1242710640. Its totient is φ = 199544576.

The previous prime is 516680231. The next prime is 516680267. The reversal of 516680240 is 42086615.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 516680197 and 516680206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109034 + ... + 113673.

It is an arithmetic number, because the mean of its divisors is an integer number (31067766).

Almost surely, 2^516680240 is an apocalyptic number.

It is an amenable number.

516680240 is an abundant number, since it is smaller than the sum of its proper divisors (726030400).

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

516680240 is a wasteful number, since it uses less digits than its factorization.

516680240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222749 (or 222743 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 516680240 is about 22730.6013998750. The cubic root of 516680240 is about 802.4302349719.

The spelling of 516680240 in words is "five hundred sixteen million, six hundred eighty thousand, two hundred forty".