493404 has 12 divisors (see below), whose sum is σ = 1151304. Its totient is φ = 164464.

The previous prime is 493403. The next prime is 493433. The reversal of 493404 is 404394.

493404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493403) 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 in 3 ways as a sum of consecutive naturals, for example, 20547 + ... + 20570.

It is an arithmetic number, because the mean of its divisors is an integer number (95942).

2⁴⁹³⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

493404 is an abundant number, since it is smaller than the sum of its proper divisors (657900).

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

493404 is a wasteful number, since it uses less digits than its factorization.

493404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41124 (or 41122 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 493404 is about 702.4272204293. The cubic root of 493404 is about 79.0194899304.

Adding to 493404 its reverse (404394), we get a palindrome (897798).

The spelling of 493404 in words is "four hundred ninety-three thousand, four hundred four".