549928 has 16 divisors (see below), whose sum is σ = 1051380. Its totient is φ = 269568.

The previous prime is 549911. The next prime is 549937. The reversal of 549928 is 829945.

It can be written as a sum of positive squares in 2 ways, for example, as 432964 + 116964 = 658^2 + 342^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225 + ... + 1072.

2⁵⁴⁹⁹²⁸ is an apocalyptic number.

It is an amenable number.

549928 is a deficient number, since it is larger than the sum of its proper divisors (501452).

549928 is a wasteful number, since it uses less digits than its factorization.

549928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1352 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 549928 is about 741.5713047307. The cubic root of 549928 is about 81.9285516840.

The spelling of 549928 in words is "five hundred forty-nine thousand, nine hundred twenty-eight".