520042 has 8 divisors (see below), whose sum is σ = 798336. Its totient is φ = 253932.

The previous prime is 520031. The next prime is 520043. The reversal of 520042 is 240025.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (520043) 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, 2938 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2⁵²⁰⁰⁴² is an apocalyptic number.

520042 is a deficient number, since it is larger than the sum of its proper divisors (278294).

520042 is a wasteful number, since it uses less digits than its factorization.

520042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 520042 is about 721.1393762651. The cubic root of 520042 is about 80.4166801197.

Adding to 520042 its reverse (240025), we get a palindrome (760067).

The spelling of 520042 in words is "five hundred twenty thousand, forty-two".