549828 has 30 divisors (see below), whose sum is σ = 1438206. Its totient is φ = 183168.

The previous prime is 549817. The next prime is 549833. The reversal of 549828 is 828945.

It can be written as a sum of positive squares in only one way, i.e., 544644 + 5184 = 738^2 + 72^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 549792 and 549801.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549828.

It is an unprimeable number.

549828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 525 + ... + 1172.

2⁵⁴⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

549828 is an abundant number, since it is smaller than the sum of its proper divisors (888378).

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

549828 is a wasteful number, since it uses less digits than its factorization.

549828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1702 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 549828 is about 741.5038772657. The cubic root of 549828 is about 81.9235853660.

The spelling of 549828 in words is "five hundred forty-nine thousand, eight hundred twenty-eight".