520944918 has 32 divisors (see below), whose sum is σ = 1122971136. Its totient is φ = 160157088.

The previous prime is 520944887. The next prime is 520944937. The reversal of 520944918 is 819449025.

It is a self number, because there is not a number n which added to its sum of digits gives 520944918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134355 + ... + 138177.

It is an arithmetic number, because the mean of its divisors is an integer number (35092848).

Almost surely, 2^520944918 is an apocalyptic number.

520944918 is an abundant number, since it is smaller than the sum of its proper divisors (602026218).

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

520944918 is a wasteful number, since it uses less digits than its factorization.

520944918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 520944918 is about 22824.2177960166. The cubic root of 520944918 is about 804.6319411011.

The spelling of 520944918 in words is "five hundred twenty million, nine hundred forty-four thousand, nine hundred eighteen".