493745866 has 48 divisors (see below), whose sum is σ = 806872320. Its totient is φ = 226255680.

The previous prime is 493745843. The next prime is 493745867. The reversal of 493745866 is 668547394.

It is not an unprimeable number, because it can be changed into a prime (493745867) 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 23 ways as a sum of consecutive naturals, for example, 6763606 + ... + 6763678.

It is an arithmetic number, because the mean of its divisors is an integer number (16809840).

Almost surely, 2^493745866 is an apocalyptic number.

493745866 is a deficient number, since it is larger than the sum of its proper divisors (313126454).

493745866 is a wasteful number, since it uses less digits than its factorization.

493745866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 208 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 493745866 is about 22220.3930208266. The cubic root of 493745866 is about 790.3773585747.

The spelling of 493745866 in words is "four hundred ninety-three million, seven hundred forty-five thousand, eight hundred sixty-six".