522406 has 8 divisors (see below), whose sum is σ = 810720. Its totient is φ = 252168.

The previous prime is 522391. The next prime is 522409. The reversal of 522406 is 604225.

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

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522409) 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, 4446 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (101340).

2⁵²²⁴⁰⁶ is an apocalyptic number.

522406 is a deficient number, since it is larger than the sum of its proper divisors (288314).

522406 is a wasteful number, since it uses less digits than its factorization.

522406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9038.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 522406 is about 722.7765906558. The cubic root of 522406 is about 80.5383483042.

The spelling of 522406 in words is "five hundred twenty-two thousand, four hundred six".