502638 has 8 divisors (see below), whose sum is σ = 1005288. Its totient is φ = 167544.

The previous prime is 502633. The next prime is 502643. The reversal of 502638 is 836205.

It is an interprime number because it is at equal distance from previous prime (502633) and next prime (502643).

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

502638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502631) by changing a digit.

502638 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41881 + ... + 41892.

It is an arithmetic number, because the mean of its divisors is an integer number (125661).

2⁵⁰²⁶³⁸ is an apocalyptic number.

502638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

502638 is a wasteful number, since it uses less digits than its factorization.

502638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83778.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 502638 is about 708.9696749509. The cubic root of 502638 is about 79.5093932970.

The spelling of 502638 in words is "five hundred two thousand, six hundred thirty-eight".