518506230 has 64 divisors (see below), whose sum is σ = 1374796800. Its totient is φ = 124101120.

The previous prime is 518506211. The next prime is 518506231. The reversal of 518506230 is 32605815.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518506231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16126 + ... + 36014.

It is an arithmetic number, because the mean of its divisors is an integer number (21481200).

Almost surely, 2^518506230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518506230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687398400).

518506230 is an abundant number, since it is smaller than the sum of its proper divisors (856290570).

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

518506230 is a wasteful number, since it uses less digits than its factorization.

518506230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19989.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 518506230 is about 22770.7318722961. The cubic root of 518506230 is about 803.3744081583.

The spelling of 518506230 in words is "five hundred eighteen million, five hundred six thousand, two hundred thirty".