520242239 has 8 divisors (see below), whose sum is σ = 572842368. Its totient is φ = 468526360.

The previous prime is 520242227. The next prime is 520242269. The reversal of 520242239 is 932242025.

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

It is a cyclic number.

It is not a de Polignac number, because 520242239 - 2¹⁶ = 520176703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520242209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219827 + ... + 222180.

It is an arithmetic number, because the mean of its divisors is an integer number (71605296).

Almost surely, 2^520242239 is an apocalyptic number.

520242239 is a deficient number, since it is larger than the sum of its proper divisors (52600129).

520242239 is a wasteful number, since it uses less digits than its factorization.

520242239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442125.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 520242239 is about 22808.8193249892. The cubic root of 520242239 is about 804.2700011262.

The spelling of 520242239 in words is "five hundred twenty million, two hundred forty-two thousand, two hundred thirty-nine".