521842368 has 28 divisors (see below), whose sum is σ = 1380708440. Its totient is φ = 173947392.

The previous prime is 521842357. The next prime is 521842397. The reversal of 521842368 is 863248125.

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, 1358773 + ... + 1359156.

Almost surely, 2^521842368 is an apocalyptic number.

It is an amenable number.

521842368 is an abundant number, since it is smaller than the sum of its proper divisors (858866072).

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

521842368 is a wasteful number, since it uses less digits than its factorization.

521842368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717944 (or 2717934 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 521842368 is about 22843.8693745171. The cubic root of 521842368 is about 805.0937318683.

It can be divided in two parts, 5218 and 42368, that added together give a triangular number (47586 = T₃₀₈).

The spelling of 521842368 in words is "five hundred twenty-one million, eight hundred forty-two thousand, three hundred sixty-eight".