494831385 has 12 divisors (see below), whose sum is σ = 857707812. Its totient is φ = 263910048.

The previous prime is 494831371. The next prime is 494831399. The reversal of 494831385 is 583138494.

494831385 is a `hidden beast` number, since 494 + 83 + 1 + 3 + 85 = 666.

It is an interprime number because it is at equal distance from previous prime (494831371) and next prime (494831399).

It can be written as a sum of positive squares in 2 ways, for example, as 88284816 + 406546569 = 9396^2 + 20163^2 .

It is not a de Polignac number, because 494831385 - 2⁵ = 494831353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 10996253 = 494831385 / (4 + 9 + 4 + 8 + 3 + 1 + 3 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 494831385.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5498082 + ... + 5498171.

It is an arithmetic number, because the mean of its divisors is an integer number (71475651).

Almost surely, 2^494831385 is an apocalyptic number.

494831385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

494831385 is a deficient number, since it is larger than the sum of its proper divisors (362876427).

494831385 is a wasteful number, since it uses less digits than its factorization.

494831385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10996264 (or 10996261 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 494831385 is about 22244.8057982083. The cubic root of 494831385 is about 790.9561594695.

The spelling of 494831385 in words is "four hundred ninety-four million, eight hundred thirty-one thousand, three hundred eighty-five".