506042 has 8 divisors (see below), whose sum is σ = 762132. Its totient is φ = 252000.

The previous prime is 505979. The next prime is 506047. The reversal of 506042 is 240605.

It can be written as a sum of positive squares in 2 ways, for example, as 491401 + 14641 = 701^2 + 121^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 506042.

It is not an unprimeable number, because it can be changed into a prime (506047) by changing a digit.

506042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542 + ... + 1142.

2⁵⁰⁶⁰⁴² is an apocalyptic number.

506042 is a deficient number, since it is larger than the sum of its proper divisors (256090).

506042 is a wasteful number, since it uses less digits than its factorization.

506042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 506042 is about 711.3662910203. The cubic root of 506042 is about 79.6884759845.

Adding to 506042 its reverse (240605), we get a palindrome (746647).

The spelling of 506042 in words is "five hundred six thousand, forty-two".