494297668 has 12 divisors (see below), whose sum is σ = 865976832. Its totient is φ = 246875720.

The previous prime is 494297641. The next prime is 494297677. The reversal of 494297668 is 866792494.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64180 + ... + 71467.

It is an arithmetic number, because the mean of its divisors is an integer number (72164736).

Almost surely, 2^494297668 is an apocalyptic number.

It is an amenable number.

494297668 is a deficient number, since it is larger than the sum of its proper divisors (371679164).

494297668 is a wasteful number, since it uses less digits than its factorization.

494297668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136562 (or 136560 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 494297668 is about 22232.8061206857. The cubic root of 494297668 is about 790.6716863972.

The spelling of 494297668 in words is "four hundred ninety-four million, two hundred ninety-seven thousand, six hundred sixty-eight".