8849644440 has 768 divisors, whose sum is σ = 36808473600. Its totient is φ = 1656225792.

The previous prime is 8849644387. The next prime is 8849644451. The reversal of 8849644440 is 444469488.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45852984 + ... + 45853176.

It is an arithmetic number, because the mean of its divisors is an integer number (47927700).

Almost surely, 2^8849644440 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 8849644440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18404236800).

8849644440 is an abundant number, since it is smaller than the sum of its proper divisors (27958829160).

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

8849644440 is a wasteful number, since it uses less digits than its factorization.

8849644440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The square root of 8849644440 is about 94072.5488120738. The cubic root of 8849644440 is about 2068.4352991480.

The spelling of 8849644440 in words is "eight billion, eight hundred forty-nine million, six hundred forty-four thousand, four hundred forty".