522113040 has 200 divisors, whose sum is σ = 1827037080. Its totient is φ = 138184704.

The previous prime is 522113003. The next prime is 522113063. The reversal of 522113040 is 40311225.

It can be written as a sum of positive squares in 4 ways, for example, as 313714944 + 208398096 = 17712^2 + 14436^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1276356 + ... + 1276764.

Almost surely, 2^522113040 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 522113040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913518540).

522113040 is an abundant number, since it is smaller than the sum of its proper divisors (1304924040).

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

522113040 is a wasteful number, since it uses less digits than its factorization.

522113040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 522113040 is about 22849.7929968742. The cubic root of 522113040 is about 805.2329045879.

Adding to 522113040 its reverse (40311225), we get a palindrome (562424265).

The spelling of 522113040 in words is "five hundred twenty-two million, one hundred thirteen thousand, forty".