505042 has 8 divisors (see below), whose sum is σ = 760716. Its totient is φ = 251472.

The previous prime is 505033. The next prime is 505049. The reversal of 505042 is 240505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 436921 + 68121 = 661^2 + 261^2 .

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 (505049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408 + ... + 1084.

2⁵⁰⁵⁰⁴² is an apocalyptic number.

505042 is a deficient number, since it is larger than the sum of its proper divisors (255674).

505042 is a wasteful number, since it uses less digits than its factorization.

505042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 505042 is about 710.6630706601. The cubic root of 505042 is about 79.6359500248.

Adding to 505042 its reverse (240505), we get a palindrome (745547).

The spelling of 505042 in words is "five hundred five thousand, forty-two".