518189948 has 12 divisors (see below), whose sum is σ = 907035360. Its totient is φ = 259036992.

The previous prime is 518189891. The next prime is 518189953. The reversal of 518189948 is 849981815.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 518189948.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10340 + ... + 33812.

It is an arithmetic number, because the mean of its divisors is an integer number (75586280).

Almost surely, 2^518189948 is an apocalyptic number.

It is an amenable number.

518189948 is a deficient number, since it is larger than the sum of its proper divisors (388845412).

518189948 is a wasteful number, since it uses less digits than its factorization.

518189948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28996 (or 28994 counting only the distinct ones).

The product of its digits is 829440, while the sum is 53.

The square root of 518189948 is about 22763.7858889948. The cubic root of 518189948 is about 803.2110256492.

The spelling of 518189948 in words is "five hundred eighteen million, one hundred eighty-nine thousand, nine hundred forty-eight".