494128 has 20 divisors (see below), whose sum is σ = 970920. Its totient is φ = 243584.

The previous prime is 494107. The next prime is 494129. The reversal of 494128 is 821494.

494128 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 = 494096 and 494105.

It is not an unprimeable number, because it can be changed into a prime (494129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (48546).

2⁴⁹⁴¹²⁸ is an apocalyptic number.

It is an amenable number.

494128 is a deficient number, since it is larger than the sum of its proper divisors (476792).

494128 is a wasteful number, since it uses less digits than its factorization.

494128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 438 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 494128 is about 702.9423873974. The cubic root of 494128 is about 79.0581209852.

The spelling of 494128 in words is "four hundred ninety-four thousand, one hundred twenty-eight".