494778 has 8 divisors (see below), whose sum is σ = 989568. Its totient is φ = 164924.

The previous prime is 494761. The next prime is 494783. The reversal of 494778 is 877494.

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

494778 is an admirable number.

It is a Curzon number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 41226 + ... + 41237.

It is an arithmetic number, because the mean of its divisors is an integer number (123696).

2⁴⁹⁴⁷⁷⁸ is an apocalyptic number.

494778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

494778 is a wasteful number, since it uses less digits than its factorization.

494778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82468.

The product of its digits is 56448, while the sum is 39.

The square root of 494778 is about 703.4045777502. The cubic root of 494778 is about 79.0927714283.

The spelling of 494778 in words is "four hundred ninety-four thousand, seven hundred seventy-eight".