494405878 has 16 divisors (see below), whose sum is σ = 797253120. Its totient is φ = 229208616.

The previous prime is 494405869. The next prime is 494405927. The reversal of 494405878 is 878504494.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136626 + ... + 140197.

It is an arithmetic number, because the mean of its divisors is an integer number (49828320).

Almost surely, 2^494405878 is an apocalyptic number.

494405878 is a deficient number, since it is larger than the sum of its proper divisors (302847242).

494405878 is a wasteful number, since it uses less digits than its factorization.

494405878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276891.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 494405878 is about 22235.2395534656. The cubic root of 494405878 is about 790.7293792586.

The spelling of 494405878 in words is "four hundred ninety-four million, four hundred five thousand, eight hundred seventy-eight".