494406 has 36 divisors (see below), whose sum is σ = 1182636. Its totient is φ = 149160.

The previous prime is 494387. The next prime is 494407. The reversal of 494406 is 604494.

It is a self number, because there is not a number n which added to its sum of digits gives 494406.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 494406.

It is not an unprimeable number, because it can be changed into a prime (494407) by changing a digit.

494406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2065 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (32851).

2⁴⁹⁴⁴⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591318).

494406 is an abundant number, since it is smaller than the sum of its proper divisors (688230).

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

494406 is a wasteful number, since it uses less digits than its factorization.

494406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 494406 is about 703.1400998379. The cubic root of 494406 is about 79.0729444299.

It can be divided in two parts, 494 and 406, that added together give a square (900 = 30²).

The spelling of 494406 in words is "four hundred ninety-four thousand, four hundred six".