549407928 has 32 divisors (see below), whose sum is σ = 1392339600. Its totient is φ = 180626688.

The previous prime is 549407927. The next prime is 549407939. The reversal of 549407928 is 829704945.

549407928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549407927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155043 + ... + 158546.

Almost surely, 2^549407928 is an apocalyptic number.

It is an amenable number.

549407928 is an abundant number, since it is smaller than the sum of its proper divisors (842931672).

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

549407928 is a wasteful number, since it uses less digits than its factorization.

549407928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313671 (or 313667 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 549407928 is about 23439.4523826816. The cubic root of 549407928 is about 819.0271667487.

The spelling of 549407928 in words is "five hundred forty-nine million, four hundred seven thousand, nine hundred twenty-eight".