2805870288 has 80 divisors (see below), whose sum is σ = 7834151360. Its totient is φ = 860239872.

The previous prime is 2805870283. The next prime is 2805870289. The reversal of 2805870288 is 8820785082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805870283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168648 + ... + 184536.

It is an arithmetic number, because the mean of its divisors is an integer number (97926892).

Almost surely, 2^2805870288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2805870288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3917075680).

2805870288 is an abundant number, since it is smaller than the sum of its proper divisors (5028281072).

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

2805870288 is a wasteful number, since it uses less digits than its factorization.

2805870288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16196 (or 16190 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The square root of 2805870288 is about 52970.4661863571. The cubic root of 2805870288 is about 1410.4440510765. Note that the first 3 decimals are identical.

It can be divided in two parts, 28058 and 70288, that added together give a triangular number (98346 = T₄₄₃).

The spelling of 2805870288 in words is "two billion, eight hundred five million, eight hundred seventy thousand, two hundred eighty-eight".