8778080240 has 80 divisors (see below), whose sum is σ = 20688485376. Its totient is φ = 3463430400.

The previous prime is 8778080177. The next prime is 8778080263. The reversal of 8778080240 is 420808778.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 8778080191 and 8778080200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2231075 + ... + 2235005.

Almost surely, 2^8778080240 is an apocalyptic number.

8778080240 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 8778080240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10344242688).

8778080240 is an abundant number, since it is smaller than the sum of its proper divisors (11910405136).

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

8778080240 is a wasteful number, since it uses less digits than its factorization.

8778080240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 8778080240 is about 93691.4096382374. The cubic root of 8778080240 is about 2062.8446138095.

The spelling of 8778080240 in words is "eight billion, seven hundred seventy-eight million, eighty thousand, two hundred forty".