518000028 has 48 divisors (see below), whose sum is σ = 1487592960. Its totient is φ = 136615104.

The previous prime is 518000011. The next prime is 518000029. The reversal of 518000028 is 820000815.

It is a junction number, because it is equal to n+sod(n) for n = 517999971 and 518000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518000029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236088 + ... + 238271.

It is an arithmetic number, because the mean of its divisors is an integer number (30991520).

Almost surely, 2^518000028 is an apocalyptic number.

It is an amenable number.

518000028 is an abundant number, since it is smaller than the sum of its proper divisors (969592932).

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

518000028 is a wasteful number, since it uses less digits than its factorization.

518000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474386 (or 474384 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 518000028 is about 22759.6139686068. The cubic root of 518000028 is about 803.1128862965.

The spelling of 518000028 in words is "five hundred eighteen million, twenty-eight", and thus it is an aban number.