494001089 has 6 divisors (see below), whose sum is σ = 510451650. Its totient is φ = 478064640.

The previous prime is 494001059. The next prime is 494001103. The reversal of 494001089 is 980100494.

It can be written as a sum of positive squares in only one way, i.e., 424978225 + 69022864 = 20615^2 + 8308^2 .

It is not a de Polignac number, because 494001089 - 2²⁰ = 492952513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (494001029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256064 + ... + 257985.

It is an arithmetic number, because the mean of its divisors is an integer number (85075275).

Almost surely, 2^494001089 is an apocalyptic number.

It is an amenable number.

494001089 is a deficient number, since it is larger than the sum of its proper divisors (16450561).

494001089 is an equidigital number, since it uses as much as digits as its factorization.

494001089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514111 (or 514080 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 494001089 is about 22226.1352690926. The cubic root of 494001089 is about 790.5135202096.

The spelling of 494001089 in words is "four hundred ninety-four million, one thousand, eighty-nine".