2869128 has 64 divisors (see below), whose sum is σ = 8208000. Its totient is φ = 927936.

The previous prime is 2869127. The next prime is 2869159. The reversal of 2869128 is 8219682.

2869128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2869092 and 2869101.

It is not an unprimeable number, because it can be changed into a prime (2869123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7813 + ... + 8171.

It is an arithmetic number, because the mean of its divisors is an integer number (128250).

2^2869128 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 2869128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4104000).

2869128 is an abundant number, since it is smaller than the sum of its proper divisors (5338872).

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

2869128 is a wasteful number, since it uses less digits than its factorization.

2869128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 401 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2869128 is about 1693.8500523954. The cubic root of 2869128 is about 142.0964761298.

The spelling of 2869128 in words is "two million, eight hundred sixty-nine thousand, one hundred twenty-eight".