518564742 has 16 divisors (see below), whose sum is σ = 1039914480. Its totient is φ = 172390752.

The previous prime is 518564737. The next prime is 518564743. The reversal of 518564742 is 247465815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 518564694 and 518564703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518564743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113617 + ... + 118092.

It is an arithmetic number, because the mean of its divisors is an integer number (64994655).

Almost surely, 2^518564742 is an apocalyptic number.

518564742 is an abundant number, since it is smaller than the sum of its proper divisors (521349738).

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

518564742 is a wasteful number, since it uses less digits than its factorization.

518564742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232087.

The product of its digits is 268800, while the sum is 42.

The square root of 518564742 is about 22772.0166432400. The cubic root of 518564742 is about 803.4046265514.

The spelling of 518564742 in words is "five hundred eighteen million, five hundred sixty-four thousand, seven hundred forty-two".