8785280 has 128 divisors (see below), whose sum is σ = 25116480. Its totient is φ = 2875392.

The previous prime is 8785267. The next prime is 8785297. The reversal of 8785280 is 825878.

8785280 = T₁₂₀ + T₁₂₁ + ... + T₃₇₈.

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

It is a super-2 number, since 2×8785280² = 154362289356800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165734 + ... + 165786.

Almost surely, 2^8785280 is an apocalyptic number.

8785280 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 8785280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12558240).

8785280 is an abundant number, since it is smaller than the sum of its proper divisors (16331200).

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

8785280 is a wasteful number, since it uses less digits than its factorization.

8785280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 8785280 is about 2963.9973009434. The cubic root of 8785280 is about 206.3408439728.

The spelling of 8785280 in words is "eight million, seven hundred eighty-five thousand, two hundred eighty".