522490 has 8 divisors (see below), whose sum is σ = 940500. Its totient is φ = 208992.

The previous prime is 522479. The next prime is 522497. The reversal of 522490 is 94225.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 434281 + 88209 = 659^2 + 297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 5⁸ + 2¹⁶ + 4³ + 2¹⁶ + 9³ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26115 + ... + 26134.

2⁵²²⁴⁹⁰ is an apocalyptic number.

522490 is a deficient number, since it is larger than the sum of its proper divisors (418010).

522490 is a wasteful number, since it uses less digits than its factorization.

522490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52256.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 522490 is about 722.8346975623. The cubic root of 522490 is about 80.5426647801.

The spelling of 522490 in words is "five hundred twenty-two thousand, four hundred ninety".