494422257 has 8 divisors (see below), whose sum is σ = 753405376. Its totient is φ = 282526992.

The previous prime is 494422241. The next prime is 494422261. The reversal of 494422257 is 752224494.

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

It is not a de Polignac number, because 494422257 - 2⁴ = 494422241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494422207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11771938 + ... + 11771979.

It is an arithmetic number, because the mean of its divisors is an integer number (94175672).

Almost surely, 2^494422257 is an apocalyptic number.

It is an amenable number.

494422257 is a deficient number, since it is larger than the sum of its proper divisors (258983119).

494422257 is a wasteful number, since it uses less digits than its factorization.

494422257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23543927.

The product of its digits is 161280, while the sum is 39.

The square root of 494422257 is about 22235.6078621656. The cubic root of 494422257 is about 790.7381110949.

The spelling of 494422257 in words is "four hundred ninety-four million, four hundred twenty-two thousand, two hundred fifty-seven".