2750785280 has 144 divisors (see below), whose sum is σ = 6922782720. Its totient is φ = 1045254144.

The previous prime is 2750785231. The next prime is 2750785307. The reversal of 2750785280 is 825870572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6564911 + ... + 6565329.

It is an arithmetic number, because the mean of its divisors is an integer number (48074880).

Almost surely, 2^2750785280 is an apocalyptic number.

2750785280 is a gapful number since it is divisible by the number (20) 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 2750785280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3461391360).

2750785280 is an abundant number, since it is smaller than the sum of its proper divisors (4171997440).

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

2750785280 is a wasteful number, since it uses less digits than its factorization.

2750785280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 2750785280 is about 52447.9292250895. The cubic root of 2750785280 is about 1401.1530093298.

The spelling of 2750785280 in words is "two billion, seven hundred fifty million, seven hundred eighty-five thousand, two hundred eighty".