549140 has 12 divisors (see below), whose sum is σ = 1153236. Its totient is φ = 219648.

The previous prime is 549139. The next prime is 549149. The reversal of 549140 is 41945.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94864 + 454276 = 308^2 + 674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13709 + ... + 13748.

It is an arithmetic number, because the mean of its divisors is an integer number (96103).

2⁵⁴⁹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

549140 is an abundant number, since it is smaller than the sum of its proper divisors (604096).

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

549140 is a wasteful number, since it uses less digits than its factorization.

549140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27466 (or 27464 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 549140 is about 741.0398099967. The cubic root of 549140 is about 81.8894007651.

The spelling of 549140 in words is "five hundred forty-nine thousand, one hundred forty".