522442404 has 108 divisors (see below), whose sum is σ = 1469373360. Its totient is φ = 155221920.

The previous prime is 522442391. The next prime is 522442423. The reversal of 522442404 is 404244225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1378287 + ... + 1378665.

Almost surely, 2^522442404 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 522442404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734686680).

522442404 is an abundant number, since it is smaller than the sum of its proper divisors (946930956).

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

522442404 is a wasteful number, since it uses less digits than its factorization.

522442404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 522442404 is about 22856.9990156188. Note that the first 3 decimals coincide. The cubic root of 522442404 is about 805.4021903947.

Adding to 522442404 its reverse (404244225), we get a palindrome (926686629).

The spelling of 522442404 in words is "five hundred twenty-two million, four hundred forty-two thousand, four hundred four".