549383128 has 16 divisors (see below), whose sum is σ = 1177249680. Its totient is φ = 235449888.

The previous prime is 549383123. The next prime is 549383167. The reversal of 549383128 is 821383945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549383123) 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, 4905151 + ... + 4905262.

It is an arithmetic number, because the mean of its divisors is an integer number (73578105).

Almost surely, 2^549383128 is an apocalyptic number.

It is an amenable number.

549383128 is an abundant number, since it is smaller than the sum of its proper divisors (627866552).

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

549383128 is a wasteful number, since it uses less digits than its factorization.

549383128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810426 (or 9810422 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 549383128 is about 23438.9233541133. The cubic root of 549383128 is about 819.0148430706.

The spelling of 549383128 in words is "five hundred forty-nine million, three hundred eighty-three thousand, one hundred twenty-eight".