2128808 has 32 divisors (see below), whose sum is σ = 4613760. Its totient is φ = 910080.

The previous prime is 2128799. The next prime is 2128823. The reversal of 2128808 is 8088212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (144180).

2^2128808 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 2128808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306880).

2128808 is an abundant number, since it is smaller than the sum of its proper divisors (2484952).

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

2128808 is a wasteful number, since it uses less digits than its factorization.

2128808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 2128808 is about 1459.0435223118. The cubic root of 2128808 is about 128.6408293161.

The spelling of 2128808 in words is "two million, one hundred twenty-eight thousand, eight hundred eight".