8868240 has 120 divisors (see below), whose sum is σ = 30321720. Its totient is φ = 2322432.

The previous prime is 8868217. The next prime is 8868247. The reversal of 8868240 is 428688.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 8785296 = 288^2 + 2964^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8868195 and 8868204.

It is not an unprimeable number, because it can be changed into a prime (8868247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78424 + ... + 78536.

It is an arithmetic number, because the mean of its divisors is an integer number (252681).

Almost surely, 2^8868240 is an apocalyptic number.

8868240 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 8868240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15160860).

8868240 is an abundant number, since it is smaller than the sum of its proper divisors (21453480).

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

8868240 is a wasteful number, since it uses less digits than its factorization.

8868240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 8868240 is about 2977.9590326262. The cubic root of 8868240 is about 206.9883071180.

The spelling of 8868240 in words is "eight million, eight hundred sixty-eight thousand, two hundred forty".