518842068 has 12 divisors (see below), whose sum is σ = 1210631520. Its totient is φ = 172947352.

The previous prime is 518842067. The next prime is 518842097. The reversal of 518842068 is 860248815.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518842067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21618408 + ... + 21618431.

It is an arithmetic number, because the mean of its divisors is an integer number (100885960).

Almost surely, 2^518842068 is an apocalyptic number.

It is an amenable number.

518842068 is an abundant number, since it is smaller than the sum of its proper divisors (691789452).

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

518842068 is a wasteful number, since it uses less digits than its factorization.

518842068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43236846 (or 43236844 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 518842068 is about 22778.1050133676. The cubic root of 518842068 is about 803.5478200409.

The spelling of 518842068 in words is "five hundred eighteen million, eight hundred forty-two thousand, sixty-eight".