549042969 has 16 divisors (see below), whose sum is σ = 748696320. Its totient is φ = 357801600.

The previous prime is 549042947. The next prime is 549042997. The reversal of 549042969 is 969240945.

549042969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 549042969 - 2⁵ = 549042937 is a prime.

It is a super-2 number, since 2×549042969² = 602896363616669922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549042469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12469 + ... + 35405.

It is an arithmetic number, because the mean of its divisors is an integer number (46793520).

Almost surely, 2^549042969 is an apocalyptic number.

It is an amenable number.

549042969 is a deficient number, since it is larger than the sum of its proper divisors (199653351).

549042969 is a wasteful number, since it uses less digits than its factorization.

549042969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23120.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 549042969 is about 23431.6659458947. The cubic root of 549042969 is about 818.8457729661.

The spelling of 549042969 in words is "five hundred forty-nine million, forty-two thousand, nine hundred sixty-nine".