550740 has 48 divisors (see below), whose sum is σ = 1576512. Its totient is φ = 143616.

The previous prime is 550733. The next prime is 550757. The reversal of 550740 is 47055.

550740 = T₁₅ + T₁₆ + ... + T₁₄₈.

It is a congruent number.

It is an unprimeable number.

550740 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 15 ways as a sum of consecutive naturals, for example, 3952 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (32844).

2⁵⁵⁰⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788256).

550740 is an abundant number, since it is smaller than the sum of its proper divisors (1025772).

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

550740 is a wasteful number, since it uses less digits than its factorization.

550740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 550740 is about 742.1185889061. The cubic root of 550740 is about 81.9688559102.

Adding to 550740 its reverse (47055), we get a palindrome (597795).

The spelling of 550740 in words is "five hundred fifty thousand, seven hundred forty".