550644240 has 160 divisors (see below), whose sum is σ = 1761851520. Its totient is φ = 142184448.

The previous prime is 550644233. The next prime is 550644253. The reversal of 550644240 is 42446055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 550644198 and 550644207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2363164 + ... + 2363396.

It is an arithmetic number, because the mean of its divisors is an integer number (11011572).

Almost surely, 2^550644240 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 550644240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880925760).

550644240 is an abundant number, since it is smaller than the sum of its proper divisors (1211207280).

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

550644240 is a wasteful number, since it uses less digits than its factorization.

550644240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 550644240 is about 23465.8100222430. The cubic root of 550644240 is about 819.6410485250.

The spelling of 550644240 in words is "five hundred fifty million, six hundred forty-four thousand, two hundred forty".