520344576 has 132 divisors (see below), whose sum is σ = 1517465664. Its totient is φ = 171724800.

The previous prime is 520344557. The next prime is 520344577. The reversal of 520344576 is 675443025.

520344576 is a `hidden beast` number, since 5 + 203 + 445 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 520344576.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520344577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1207081 + ... + 1207511.

It is an arithmetic number, because the mean of its divisors is an integer number (11495952).

Almost surely, 2^520344576 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 520344576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758732832).

520344576 is an abundant number, since it is smaller than the sum of its proper divisors (997121088).

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

520344576 is a wasteful number, since it uses less digits than its factorization.

520344576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 520344576 is about 22811.0625793714. The cubic root of 520344576 is about 804.3227337295.

The spelling of 520344576 in words is "five hundred twenty million, three hundred forty-four thousand, five hundred seventy-six".