509042 has 8 divisors (see below), whose sum is σ = 768000. Its totient is φ = 253044.

The previous prime is 509027. The next prime is 509053. The reversal of 509042 is 240905.

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, 242 + ... + 1037.

It is an arithmetic number, because the mean of its divisors is an integer number (96000).

2⁵⁰⁹⁰⁴² is an apocalyptic number.

509042 is a deficient number, since it is larger than the sum of its proper divisors (258958).

509042 is a wasteful number, since it uses less digits than its factorization.

509042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 509042 is about 713.4717934158. The cubic root of 509042 is about 79.8456398534.

Adding to 509042 its reverse (240905), we get a palindrome (749947).

The spelling of 509042 in words is "five hundred nine thousand, forty-two".