520538460 has 144 divisors (see below), whose sum is σ = 1612893408. Its totient is φ = 124692480.

The previous prime is 520538441. The next prime is 520538471. The reversal of 520538460 is 64835025.

520538460 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1310982 + ... + 1311378.

Almost surely, 2^520538460 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 520538460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806446704).

520538460 is an abundant number, since it is smaller than the sum of its proper divisors (1092354948).

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

520538460 is a wasteful number, since it uses less digits than its factorization.

520538460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 520538460 is about 22815.3119636791. The cubic root of 520538460 is about 804.4226200685.

The spelling of 520538460 in words is "five hundred twenty million, five hundred thirty-eight thousand, four hundred sixty".