522331964 has 144 divisors (see below), whose sum is σ = 1254839040. Its totient is φ = 187488000.

The previous prime is 522331961. The next prime is 522331969. The reversal of 522331964 is 469133225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522331961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1679369 + ... + 1679679.

It is an arithmetic number, because the mean of its divisors is an integer number (8714160).

Almost surely, 2^522331964 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 522331964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627419520).

522331964 is an abundant number, since it is smaller than the sum of its proper divisors (732507076).

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

522331964 is a wasteful number, since it uses less digits than its factorization.

522331964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 391 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 522331964 is about 22854.5829977272. The cubic root of 522331964 is about 805.3454346096.

The spelling of 522331964 in words is "five hundred twenty-two million, three hundred thirty-one thousand, nine hundred sixty-four".