520608842 has 8 divisors (see below), whose sum is σ = 840983556. Its totient is φ = 240280992.

The previous prime is 520608787. The next prime is 520608863. The reversal of 520608842 is 248806025.

It can be written as a sum of positive squares in 2 ways, for example, as 375623161 + 144985681 = 19381^2 + 12041^2 .

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

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, 10011683 + ... + 10011734.

Almost surely, 2^520608842 is an apocalyptic number.

520608842 is a deficient number, since it is larger than the sum of its proper divisors (320374714).

520608842 is a wasteful number, since it uses less digits than its factorization.

520608842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20023432.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 520608842 is about 22816.8543405966. The cubic root of 520608842 is about 804.4588737595.

The spelling of 520608842 in words is "five hundred twenty million, six hundred eight thousand, eight hundred forty-two".