522442000 has 80 divisors (see below), whose sum is σ = 1276762032. Its totient is φ = 206745600.

The previous prime is 522441979. The next prime is 522442007. The reversal of 522442000 is 244225.

It can be written as a sum of positive squares in 8 ways, for example, as 204604416 + 317837584 = 14304^2 + 17828^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (522442007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192654 + ... + 195346.

Almost surely, 2^522442000 is an apocalyptic number.

522442000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638381016).

522442000 is an abundant number, since it is smaller than the sum of its proper divisors (754320032).

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

522442000 is a wasteful number, since it uses less digits than its factorization.

522442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2797 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 522442000 is about 22856.9901780615. The cubic root of 522442000 is about 805.4019827912.

Adding to 522442000 its reverse (244225), we get a palindrome (522686225).

The spelling of 522442000 in words is "five hundred twenty-two million, four hundred forty-two thousand".