520494039 has 16 divisors (see below), whose sum is σ = 830418400. Its totient is φ = 320303808.

The previous prime is 520494017. The next prime is 520494043. The reversal of 520494039 is 930494025.

It is not a de Polignac number, because 520494039 - 2⁸ = 520493783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520493994 and 520494012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520494239) by changing a digit.

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, 741094 + ... + 741795.

It is an arithmetic number, because the mean of its divisors is an integer number (51901150).

Almost surely, 2^520494039 is an apocalyptic number.

520494039 is a deficient number, since it is larger than the sum of its proper divisors (309924361).

520494039 is a wasteful number, since it uses less digits than its factorization.

520494039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482911 (or 1482905 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 520494039 is about 22814.3384519473. The cubic root of 520494039 is about 804.3997371781.

The spelling of 520494039 in words is "five hundred twenty million, four hundred ninety-four thousand, thirty-nine".