550844440 has 48 divisors (see below), whose sum is σ = 1255140000. Its totient is φ = 217574208.

The previous prime is 550844431. The next prime is 550844467. The reversal of 550844440 is 44448055.

It is a junction number, because it is equal to n+sod(n) for n = 550844396 and 550844405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274561 + ... + 276559.

It is an arithmetic number, because the mean of its divisors is an integer number (26148750).

Almost surely, 2^550844440 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 550844440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627570000).

550844440 is an abundant number, since it is smaller than the sum of its proper divisors (704295560).

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

550844440 is a wasteful number, since it uses less digits than its factorization.

550844440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

The square root of 550844440 is about 23470.0754153028. The cubic root of 550844440 is about 819.7403699159.

The spelling of 550844440 in words is "five hundred fifty million, eight hundred forty-four thousand, four hundred forty".