549941728 has 48 divisors (see below), whose sum is σ = 1241914464. Its totient is φ = 234823680.

The previous prime is 549941723. The next prime is 549941741. The reversal of 549941728 is 827149945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549941723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58576 + ... + 67312.

It is an arithmetic number, because the mean of its divisors is an integer number (25873218).

Almost surely, 2^549941728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549941728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620957232).

549941728 is an abundant number, since it is smaller than the sum of its proper divisors (691972736).

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

549941728 is a wasteful number, since it uses less digits than its factorization.

549941728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035 (or 9027 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 549941728 is about 23450.8364029942. The cubic root of 549941728 is about 819.2923341308.

The spelling of 549941728 in words is "five hundred forty-nine million, nine hundred forty-one thousand, seven hundred twenty-eight".