522312402 has 8 divisors (see below), whose sum is σ = 1044624816. Its totient is φ = 174104132.

The previous prime is 522312379. The next prime is 522312409. The reversal of 522312402 is 204213225.

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

522312402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (522312409) 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, 43526028 + ... + 43526039.

It is an arithmetic number, because the mean of its divisors is an integer number (130578102).

Almost surely, 2^522312402 is an apocalyptic number.

522312402 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.

522312402 is a wasteful number, since it uses less digits than its factorization.

522312402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87052072.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 522312402 is about 22854.1550270405. The cubic root of 522312402 is about 805.3353807453.

Adding to 522312402 its reverse (204213225), we get a palindrome (726525627).

The spelling of 522312402 in words is "five hundred twenty-two million, three hundred twelve thousand, four hundred two".