549200 has 30 divisors (see below), whose sum is σ = 1320414. Its totient is φ = 219520.

The previous prime is 549193. The next prime is 549203. The reversal of 549200 is 2945.

It can be written as a sum of positive squares in 3 ways, for example, as 169744 + 379456 = 412^2 + 616^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549203) by changing a digit.

549200 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 5 ways as a sum of consecutive naturals, for example, 287 + ... + 1086.

2⁵⁴⁹²⁰⁰ is an apocalyptic number.

549200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

549200 is an abundant number, since it is smaller than the sum of its proper divisors (771214).

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

549200 is a wasteful number, since it uses less digits than its factorization.

549200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 549200 is about 741.0802925460. The cubic root of 549200 is about 81.8923831164.

The spelling of 549200 in words is "five hundred forty-nine thousand, two hundred".