2856988288 has 128 divisors (see below), whose sum is σ = 7178025600. Its totient is φ = 1100267520.

The previous prime is 2856988283. The next prime is 2856988289. The reversal of 2856988288 is 8828896582.

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

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (2856988283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875556 + ... + 878812.

It is an arithmetic number, because the mean of its divisors is an integer number (56078325).

Almost surely, 2^2856988288 is an apocalyptic number.

2856988288 is a gapful number since it is divisible by the number (28) 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 2856988288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3589012800).

2856988288 is an abundant number, since it is smaller than the sum of its proper divisors (4321037312).

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

2856988288 is a wasteful number, since it uses less digits than its factorization.

2856988288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3366 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 64.

The square root of 2856988288 is about 53450.8025009915. The cubic root of 2856988288 is about 1418.9578228865.

The spelling of 2856988288 in words is "two billion, eight hundred fifty-six million, nine hundred eighty-eight thousand, two hundred eighty-eight".