520212 has 48 divisors (see below), whose sum is σ = 1516032. Its totient is φ = 134880.

The previous prime is 520193. The next prime is 520213. The reversal of 520212 is 212025.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520213) by changing a digit.

520212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (31584).

2⁵²⁰²¹² 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 520212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758016).

520212 is an abundant number, since it is smaller than the sum of its proper divisors (995820).

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

520212 is a wasteful number, since it uses less digits than its factorization.

520212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 520212 is about 721.2572356656. The cubic root of 520212 is about 80.4254418134.

Adding to 520212 its reverse (212025), we get a palindrome (732237).

The spelling of 520212 in words is "five hundred twenty thousand, two hundred twelve".