502668 has 18 divisors (see below), whose sum is σ = 1270724. Its totient is φ = 167544.

The previous prime is 502651. The next prime is 502669. The reversal of 502668 is 866205.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (502669) by changing a digit.

502668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 6946 + ... + 7017.

2⁵⁰²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

502668 is an abundant number, since it is smaller than the sum of its proper divisors (768056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

502668 is a wasteful number, since it uses less digits than its factorization.

502668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13973 (or 13968 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 502668 is about 708.9908320987. The cubic root of 502668 is about 79.5109751076.

The spelling of 502668 in words is "five hundred two thousand, six hundred sixty-eight".