494278 has 8 divisors (see below), whose sum is σ = 755568. Its totient is φ = 242424.

The previous prime is 494269. The next prime is 494281. The reversal of 494278 is 872494.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

494278 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, 2226 + ... + 2437.

It is an arithmetic number, because the mean of its divisors is an integer number (94446).

2⁴⁹⁴²⁷⁸ is an apocalyptic number.

494278 is a deficient number, since it is larger than the sum of its proper divisors (261290).

494278 is a wasteful number, since it uses less digits than its factorization.

494278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718.

The product of its digits is 16128, while the sum is 34.

The square root of 494278 is about 703.0490736784. The cubic root of 494278 is about 79.0661199372.

The spelling of 494278 in words is "four hundred ninety-four thousand, two hundred seventy-eight".