8441888640 has 128 divisors (see below), whose sum is σ = 27287953920. Its totient is φ = 2219427840.

The previous prime is 8441888639. The next prime is 8441888641. The reversal of 8441888640 is 468881448.

It is an interprime number because it is at equal distance from previous prime (8441888639) and next prime (8441888641).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×8441888640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8441888641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105357 + ... + 167283.

It is an arithmetic number, because the mean of its divisors is an integer number (213187140).

Almost surely, 2^8441888640 is an apocalyptic number.

8441888640 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 8441888640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13643976960).

8441888640 is an abundant number, since it is smaller than the sum of its proper divisors (18846065280).

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

8441888640 is a wasteful number, since it uses less digits than its factorization.

8441888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62020 (or 62008 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 51.

The square root of 8441888640 is about 91879.7509792011. The cubic root of 8441888640 is about 2036.1661172443.

The spelling of 8441888640 in words is "eight billion, four hundred forty-one million, eight hundred eighty-eight thousand, six hundred forty".