503942 has 4 divisors (see below), whose sum is σ = 755916. Its totient is φ = 251970.

The previous prime is 503939. The next prime is 503947. The reversal of 503942 is 249305.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125984 + ... + 125987.

It is an arithmetic number, because the mean of its divisors is an integer number (188979).

2⁵⁰³⁹⁴² is an apocalyptic number.

503942 is a deficient number, since it is larger than the sum of its proper divisors (251974).

503942 is a wasteful number, since it uses less digits than its factorization.

503942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251973.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 503942 is about 709.8887236744. Note that the first 3 decimals coincide. The cubic root of 503942 is about 79.5780913250.

The spelling of 503942 in words is "five hundred three thousand, nine hundred forty-two".