494893385 has 12 divisors (see below), whose sum is σ = 690831108. Its totient is φ = 339355296.

The previous prime is 494893349. The next prime is 494893387. The reversal of 494893385 is 583398494.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 307230784 + 187662601 = 17528^2 + 13699^2 .

It is not a de Polignac number, because 494893385 - 2⁸ = 494893129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494893387) 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 11 ways as a sum of consecutive naturals, for example, 1009742 + ... + 1010231.

It is an arithmetic number, because the mean of its divisors is an integer number (57569259).

Almost surely, 2^494893385 is an apocalyptic number.

It is an amenable number.

494893385 is a deficient number, since it is larger than the sum of its proper divisors (195937723).

494893385 is a wasteful number, since it uses less digits than its factorization.

494893385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019992 (or 2019985 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 494893385 is about 22246.1993383139. The cubic root of 494893385 is about 790.9891924281.

The spelling of 494893385 in words is "four hundred ninety-four million, eight hundred ninety-three thousand, three hundred eighty-five".