494090 has 8 divisors (see below), whose sum is σ = 889380. Its totient is φ = 197632.

The previous prime is 494083. The next prime is 494093. The reversal of 494090 is 90494.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 8281 = 697^2 + 91^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (494093) by changing a digit.

494090 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 3 ways as a sum of consecutive naturals, for example, 24695 + ... + 24714.

2⁴⁹⁴⁰⁹⁰ is an apocalyptic number.

494090 is a deficient number, since it is larger than the sum of its proper divisors (395290).

494090 is a wasteful number, since it uses less digits than its factorization.

494090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49416.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 494090 is about 702.9153576356. The cubic root of 494090 is about 79.0560943271.

The spelling of 494090 in words is "four hundred ninety-four thousand, ninety".