520845028 has 24 divisors (see below), whose sum is σ = 1037574720. Its totient is φ = 226453920.

The previous prime is 520845007. The next prime is 520845053. The reversal of 520845028 is 820548025.

It is a junction number, because it is equal to n+sod(n) for n = 520844984 and 520845002.

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 7 ways as a sum of consecutive naturals, for example, 256323 + ... + 258346.

It is an arithmetic number, because the mean of its divisors is an integer number (43232280).

Almost surely, 2^520845028 is an apocalyptic number.

It is an amenable number.

520845028 is a deficient number, since it is larger than the sum of its proper divisors (516729692).

520845028 is a wasteful number, since it uses less digits than its factorization.

520845028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514707 (or 514705 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 520845028 is about 22822.0294452531. The cubic root of 520845028 is about 804.5805090338.

It can be divided in two parts, 520 and 845028, that added together give a palindrome (845548).

The spelling of 520845028 in words is "five hundred twenty million, eight hundred forty-five thousand, twenty-eight".