501242 has 8 divisors (see below), whose sum is σ = 859296. Its totient is φ = 214812.

The previous prime is 501233. The next prime is 501257. The reversal of 501242 is 242105.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 35803 = 501242 / (5 + 0 + 1 + 2 + 4 + 2).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17888 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (107412).

2⁵⁰¹²⁴² is an apocalyptic number.

501242 is a deficient number, since it is larger than the sum of its proper divisors (358054).

501242 is a wasteful number, since it uses less digits than its factorization.

501242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35812.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 501242 is about 707.9844631064. The cubic root of 501242 is about 79.4357166621.

Adding to 501242 its reverse (242105), we get a palindrome (743347).

The spelling of 501242 in words is "five hundred one thousand, two hundred forty-two".