8944421760 has 448 divisors, whose sum is σ = 33780258000. Its totient is φ = 2257403904.

The previous prime is 8944421749. The next prime is 8944421767. The reversal of 8944421760 is 671244498.

It is a super-2 number, since 2×8944421760² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8944421767) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 8864136 + ... + 8865144.

Almost surely, 2^8944421760 is an apocalyptic number.

8944421760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8944421760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16890129000).

8944421760 is an abundant number, since it is smaller than the sum of its proper divisors (24835836240).

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

8944421760 is a wasteful number, since it uses less digits than its factorization.

8944421760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8944421760 is about 94574.9531324230. The cubic root of 8944421760 is about 2075.7932234159.

The spelling of 8944421760 in words is "eight billion, nine hundred forty-four million, four hundred twenty-one thousand, seven hundred sixty".