493428 has 24 divisors (see below), whose sum is σ = 1240288. Its totient is φ = 151776.

The previous prime is 493403. The next prime is 493433. The reversal of 493428 is 824394.

It is a happy number.

493428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 493395 and 493404.

It is a congruent number.

It is an unprimeable number.

493428 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 7 ways as a sum of consecutive naturals, for example, 1426 + ... + 1737.

2⁴⁹³⁴²⁸ is an apocalyptic number.

It is an amenable number.

493428 is an abundant number, since it is smaller than the sum of its proper divisors (746860).

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

493428 is a wasteful number, since it uses less digits than its factorization.

493428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183 (or 3181 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 493428 is about 702.4443038419. Note that the first 3 decimals coincide. The cubic root of 493428 is about 79.0207711232.

The spelling of 493428 in words is "four hundred ninety-three thousand, four hundred twenty-eight".