522738642 has 8 divisors (see below), whose sum is σ = 1045477296. Its totient is φ = 174246212.

The previous prime is 522738631. The next prime is 522738677. The reversal of 522738642 is 246837225.

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

522738642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 522738642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43561548 + ... + 43561559.

It is an arithmetic number, because the mean of its divisors is an integer number (130684662).

Almost surely, 2^522738642 is an apocalyptic number.

522738642 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.

522738642 is a wasteful number, since it uses less digits than its factorization.

522738642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87123112.

The product of its digits is 161280, while the sum is 39.

The square root of 522738642 is about 22863.4783442940. The cubic root of 522738642 is about 805.5543894063.

The spelling of 522738642 in words is "five hundred twenty-two million, seven hundred thirty-eight thousand, six hundred forty-two".