549740 has 12 divisors (see below), whose sum is σ = 1154496. Its totient is φ = 219888.

The previous prime is 549739. The next prime is 549749. The reversal of 549740 is 47945.

It is not an unprimeable number, because it can be changed into a prime (549749) 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, 13724 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (96208).

2⁵⁴⁹⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

549740 is an abundant number, since it is smaller than the sum of its proper divisors (604756).

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

549740 is a wasteful number, since it uses less digits than its factorization.

549740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496 (or 27494 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 549740 is about 741.4445360241. Note that the first 3 decimals coincide. The cubic root of 549740 is about 81.9192145082.

The spelling of 549740 in words is "five hundred forty-nine thousand, seven hundred forty".