549768338 has 24 divisors (see below), whose sum is σ = 1015721532. Its totient is φ = 221754624.

The previous prime is 549768337. The next prime is 549768343. The reversal of 549768338 is 833867945.

It can be written as a sum of positive squares in 2 ways, for example, as 446603689 + 103164649 = 21133^2 + 10157^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 549768338.

It is not an unprimeable number, because it can be changed into a prime (549768337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163331 + ... + 166662.

Almost surely, 2^549768338 is an apocalyptic number.

549768338 is a deficient number, since it is larger than the sum of its proper divisors (465953194).

549768338 is a wasteful number, since it uses less digits than its factorization.

549768338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330026 (or 330019 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 549768338 is about 23447.1392284858. The cubic root of 549768338 is about 819.2062207465.

The spelling of 549768338 in words is "five hundred forty-nine million, seven hundred sixty-eight thousand, three hundred thirty-eight".