2128888 has 8 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1064440.

The previous prime is 2128873. The next prime is 2128891. The reversal of 2128888 is 8888212.

It is a tau number, because it is divible by the number of its divisors (8).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133048 + ... + 133063.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

2^2128888 is an apocalyptic number.

It is an amenable number.

2128888 is a deficient number, since it is larger than the sum of its proper divisors (1862792).

2128888 is a wasteful number, since it uses less digits than its factorization.

2128888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266117 (or 266113 counting only the distinct ones).

The product of its digits is 16384, while the sum is 37.

The square root of 2128888 is about 1459.0709372748. The cubic root of 2128888 is about 128.6424407245.

The spelling of 2128888 in words is "two million, one hundred twenty-eight thousand, eight hundred eighty-eight".