520662030 has 64 divisors (see below), whose sum is σ = 1438456320. Its totient is φ = 118145664.

The previous prime is 520662001. The next prime is 520662031. The reversal of 520662030 is 30266025.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520662031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20272 + ... + 38108.

It is an arithmetic number, because the mean of its divisors is an integer number (22475880).

Almost surely, 2^520662030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520662030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719228160).

520662030 is an abundant number, since it is smaller than the sum of its proper divisors (917794290).

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

520662030 is a wasteful number, since it uses less digits than its factorization.

520662030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17993.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 520662030 is about 22818.0198527392. The cubic root of 520662030 is about 804.4862686723.

The spelling of 520662030 in words is "five hundred twenty million, six hundred sixty-two thousand, thirty".