494332857 has 24 divisors (see below), whose sum is σ = 727646400. Its totient is φ = 323297568.

The previous prime is 494332847. The next prime is 494332873. The reversal of 494332857 is 758233494.

It is not a de Polignac number, because 494332857 - 2⁴ = 494332841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494332847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487483 + ... + 488495.

It is an arithmetic number, because the mean of its divisors is an integer number (30318600).

Almost surely, 2^494332857 is an apocalyptic number.

It is an amenable number.

494332857 is a deficient number, since it is larger than the sum of its proper divisors (233313543).

494332857 is a wasteful number, since it uses less digits than its factorization.

494332857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1994 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 494332857 is about 22233.5974821890. The cubic root of 494332857 is about 790.6904485640.

The spelling of 494332857 in words is "four hundred ninety-four million, three hundred thirty-two thousand, eight hundred fifty-seven".