494842 has 4 divisors (see below), whose sum is σ = 742266. Its totient is φ = 247420.

The previous prime is 494803. The next prime is 494843. The reversal of 494842 is 248494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248494 = 2 ⋅124247.

It can be written as a sum of positive squares in only one way, i.e., 488601 + 6241 = 699^2 + 79^2 .

It is not an unprimeable number, because it can be changed into a prime (494843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123709 + ... + 123712.

2⁴⁹⁴⁸⁴² is an apocalyptic number.

494842 is a deficient number, since it is larger than the sum of its proper divisors (247424).

494842 is a wasteful number, since it uses less digits than its factorization.

494842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247423.

The product of its digits is 9216, while the sum is 31.

The square root of 494842 is about 703.4500693013. The cubic root of 494842 is about 79.0961815227.

The spelling of 494842 in words is "four hundred ninety-four thousand, eight hundred forty-two".