522716406 has 8 divisors (see below), whose sum is σ = 1045432824. Its totient is φ = 174238800.

The previous prime is 522716401. The next prime is 522716437. The reversal of 522716406 is 604617225.

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

522716406 is an admirable number.

It is a super-2 number, since 2×522716406² = 546464882203113672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522716401) 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, 43559695 + ... + 43559706.

It is an arithmetic number, because the mean of its divisors is an integer number (130679103).

Almost surely, 2^522716406 is an apocalyptic number.

522716406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

522716406 is a wasteful number, since it uses less digits than its factorization.

522716406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87119406.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 522716406 is about 22862.9920614079. The cubic root of 522716406 is about 805.5429671519.

The spelling of 522716406 in words is "five hundred twenty-two million, seven hundred sixteen thousand, four hundred six".