494243817 has 8 divisors (see below), whose sum is σ = 676802496. Its totient is φ = 320590512.

The previous prime is 494243801. The next prime is 494243821. The reversal of 494243817 is 718342494.

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

It is not a de Polignac number, because 494243817 - 2⁴ = 494243801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494243887) by changing a digit.

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, 2226213 + ... + 2226434.

It is an arithmetic number, because the mean of its divisors is an integer number (84600312).

Almost surely, 2^494243817 is an apocalyptic number.

It is an amenable number.

494243817 is a deficient number, since it is larger than the sum of its proper divisors (182558679).

494243817 is a wasteful number, since it uses less digits than its factorization.

494243817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452687.

The product of its digits is 193536, while the sum is 42.

The square root of 494243817 is about 22231.5950170023. The cubic root of 494243817 is about 790.6429722505.

The spelling of 494243817 in words is "four hundred ninety-four million, two hundred forty-three thousand, eight hundred seventeen".