494490 has 32 divisors (see below), whose sum is σ = 1213056. Its totient is φ = 128960.

The previous prime is 494471. The next prime is 494497. The reversal of 494490 is 94494.

494490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 494490.

It is not an unprimeable number, because it can be changed into a prime (494497) by changing a digit.

494490 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 15 ways as a sum of consecutive naturals, for example, 1435 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (37908).

2⁴⁹⁴⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606528).

494490 is an abundant number, since it is smaller than the sum of its proper divisors (718566).

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

494490 is a wasteful number, since it uses less digits than its factorization.

494490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 494490 is about 703.1998293515. The cubic root of 494490 is about 79.0774223631.

The spelling of 494490 in words is "four hundred ninety-four thousand, four hundred ninety".