502442 has 4 divisors (see below), whose sum is σ = 753666. Its totient is φ = 251220.

The previous prime is 502441. The next prime is 502451. The reversal of 502442 is 244205.

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

It can be written as a sum of positive squares in only one way, i.e., 358801 + 143641 = 599^2 + 379^2 .

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 502442.

It is not an unprimeable number, because it can be changed into a prime (502441) 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 as a sum of consecutive naturals, namely, 125609 + ... + 125612.

2⁵⁰²⁴⁴² is an apocalyptic number.

502442 is a deficient number, since it is larger than the sum of its proper divisors (251224).

502442 is a wasteful number, since it uses less digits than its factorization.

502442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251223.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 502442 is about 708.8314327116. The cubic root of 502442 is about 79.4990572519.

Adding to 502442 its reverse (244205), we get a palindrome (746647).

The spelling of 502442 in words is "five hundred two thousand, four hundred forty-two".