518241740 has 24 divisors (see below), whose sum is σ = 1111465152. Its totient is φ = 202885760.

The previous prime is 518241707. The next prime is 518241743. The reversal of 518241740 is 47142815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 518241697 and 518241706.

It is not an unprimeable number, because it can be changed into a prime (518241743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274721 + ... + 276600.

It is an arithmetic number, because the mean of its divisors is an integer number (46311048).

Almost surely, 2^518241740 is an apocalyptic number.

It is an amenable number.

518241740 is an abundant number, since it is smaller than the sum of its proper divisors (593223412).

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

518241740 is a wasteful number, since it uses less digits than its factorization.

518241740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551377 (or 551375 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 518241740 is about 22764.9234569326. The cubic root of 518241740 is about 803.2377845109.

The spelling of 518241740 in words is "five hundred eighteen million, two hundred forty-one thousand, seven hundred forty".