8554240 has 72 divisors (see below), whose sum is σ = 21118608. Its totient is φ = 3317760.

The previous prime is 8554223. The next prime is 8554243. The reversal of 8554240 is 424558.

It is a junction number, because it is equal to n+sod(n) for n = 8554199 and 8554208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8554243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52399 + ... + 52561.

It is an arithmetic number, because the mean of its divisors is an integer number (293314).

Almost surely, 2^8554240 is an apocalyptic number.

8554240 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 8554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10559304).

8554240 is an abundant number, since it is smaller than the sum of its proper divisors (12564368).

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

8554240 is a wasteful number, since it uses less digits than its factorization.

8554240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8554240 is about 2924.7632382810. The cubic root of 8554240 is about 204.5159310325.

Adding to 8554240 its reverse (424558), we get a palindrome (8978798).

The spelling of 8554240 in words is "eight million, five hundred fifty-four thousand, two hundred forty".