494349689 has 16 divisors (see below), whose sum is σ = 521664000. Its totient is φ = 467812800.

The previous prime is 494349683. The next prime is 494349697. The reversal of 494349689 is 986943494.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494349689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494349683) 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 15 ways as a sum of consecutive naturals, for example, 345227 + ... + 346655.

It is an arithmetic number, because the mean of its divisors is an integer number (32604000).

Almost surely, 2^494349689 is an apocalyptic number.

It is an amenable number.

494349689 is a deficient number, since it is larger than the sum of its proper divisors (27314311).

494349689 is a wasteful number, since it uses less digits than its factorization.

494349689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688.

The product of its digits is 6718464, while the sum is 56.

The square root of 494349689 is about 22233.9760052043. The cubic root of 494349689 is about 790.6994227807.

The spelling of 494349689 in words is "four hundred ninety-four million, three hundred forty-nine thousand, six hundred eighty-nine".