493820 has 12 divisors (see below), whose sum is σ = 1037064. Its totient is φ = 197520.

The previous prime is 493817. The next prime is 493853. The reversal of 493820 is 28394.

It is a self number, because there is not a number n which added to its sum of digits gives 493820.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 12326 + ... + 12365.

It is an arithmetic number, because the mean of its divisors is an integer number (86422).

2⁴⁹³⁸²⁰ is an apocalyptic number.

It is an amenable number.

493820 is an abundant number, since it is smaller than the sum of its proper divisors (543244).

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

493820 is a wasteful number, since it uses less digits than its factorization.

493820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24700 (or 24698 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 493820 is about 702.7232741272. The cubic root of 493820 is about 79.0416913946.

The spelling of 493820 in words is "four hundred ninety-three thousand, eight hundred twenty".