522318 has 16 divisors (see below), whose sum is σ = 1051776. Its totient is φ = 172920.

The previous prime is 522317. The next prime is 522323. The reversal of 522318 is 813225.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 522294 and 522303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413 + ... + 1743.

It is an arithmetic number, because the mean of its divisors is an integer number (65736).

2⁵²²³¹⁸ is an apocalyptic number.

522318 is an abundant number, since it is smaller than the sum of its proper divisors (529458).

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

522318 is a wasteful number, since it uses less digits than its factorization.

522318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 480, while the sum is 21.

The square root of 522318 is about 722.7157117429. The cubic root of 522318 is about 80.5338257856.

The spelling of 522318 in words is "five hundred twenty-two thousand, three hundred eighteen".