522424212 has 96 divisors (see below), whose sum is σ = 1344470400. Its totient is φ = 157151232.

The previous prime is 522424211. The next prime is 522424219. The reversal of 522424212 is 212424225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522424211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1378239 + ... + 1378617.

It is an arithmetic number, because the mean of its divisors is an integer number (14004900).

Almost surely, 2^522424212 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 522424212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672235200).

522424212 is an abundant number, since it is smaller than the sum of its proper divisors (822046188).

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

522424212 is a wasteful number, since it uses less digits than its factorization.

522424212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 663 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 522424212 is about 22856.6010596501. The cubic root of 522424212 is about 805.3928419660.

Adding to 522424212 its reverse (212424225), we get a palindrome (734848437).

The spelling of 522424212 in words is "five hundred twenty-two million, four hundred twenty-four thousand, two hundred twelve".