8888640 has 112 divisors (see below), whose sum is σ = 28968192. Its totient is φ = 2308096.

The previous prime is 8888629. The next prime is 8888641. The reversal of 8888640 is 468888.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8888592 and 8888601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8888641) 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, 45022 + ... + 45218.

Almost surely, 2^8888640 is an apocalyptic number.

8888640 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 8888640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14484096).

8888640 is an abundant number, since it is smaller than the sum of its proper divisors (20079552).

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

8888640 is a wasteful number, since it uses less digits than its factorization.

8888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 8888640 is about 2981.3822297720. The cubic root of 8888640 is about 207.1469003231.

The spelling of 8888640 in words is "eight million, eight hundred eighty-eight thousand, six hundred forty".