494135918 has 16 divisors (see below), whose sum is σ = 748984320. Its totient is φ = 244484856.

The previous prime is 494135899. The next prime is 494135947. The reversal of 494135918 is 819531494.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104105 + ... + 108747.

It is an arithmetic number, because the mean of its divisors is an integer number (46811520).

Almost surely, 2^494135918 is an apocalyptic number.

494135918 is a deficient number, since it is larger than the sum of its proper divisors (254848402).

494135918 is a wasteful number, since it uses less digits than its factorization.

494135918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191.

The product of its digits is 155520, while the sum is 44.

The square root of 494135918 is about 22229.1681805685. The cubic root of 494135918 is about 790.5854326369.

The spelling of 494135918 in words is "four hundred ninety-four million, one hundred thirty-five thousand, nine hundred eighteen".