518006808 has 144 divisors (see below), whose sum is σ = 1584732240. Its totient is φ = 152634240.

The previous prime is 518006761. The next prime is 518006831. The reversal of 518006808 is 808600815.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 321541 + ... + 323147.

It is an arithmetic number, because the mean of its divisors is an integer number (11005085).

Almost surely, 2^518006808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518006808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792366120).

518006808 is an abundant number, since it is smaller than the sum of its proper divisors (1066725432).

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

518006808 is a wasteful number, since it uses less digits than its factorization.

518006808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 518006808 is about 22759.7629161641. The cubic root of 518006808 is about 803.1163902098.

The spelling of 518006808 in words is "five hundred eighteen million, six thousand, eight hundred eight".