493843780 has 12 divisors (see below), whose sum is σ = 1037071980. Its totient is φ = 197537504.

The previous prime is 493843751. The next prime is 493843789. The reversal of 493843780 is 87348394.

It can be written as a sum of positive squares in 2 ways, for example, as 300744964 + 193098816 = 17342^2 + 13896^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 493843780.

It is not an unprimeable number, because it can be changed into a prime (493843789) 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 3 ways as a sum of consecutive naturals, for example, 12346075 + ... + 12346114.

It is an arithmetic number, because the mean of its divisors is an integer number (86422665).

Almost surely, 2^493843780 is an apocalyptic number.

It is an amenable number.

493843780 is an abundant number, since it is smaller than the sum of its proper divisors (543228200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

493843780 is a wasteful number, since it uses less digits than its factorization.

493843780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24692198 (or 24692196 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 493843780 is about 22222.5961579650. The cubic root of 493843780 is about 790.4296013032.

The spelling of 493843780 in words is "four hundred ninety-three million, eight hundred forty-three thousand, seven hundred eighty".