2128908 has 12 divisors (see below), whose sum is σ = 4967480. Its totient is φ = 709632.

The previous prime is 2128891. The next prime is 2128933. The reversal of 2128908 is 8098212.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88693 + ... + 88716.

2^2128908 is an apocalyptic number.

It is an amenable number.

2128908 is an abundant number, since it is smaller than the sum of its proper divisors (2838572).

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

2128908 is a wasteful number, since it uses less digits than its factorization.

2128908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177416 (or 177414 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2128908 is about 1459.0777909351. The cubic root of 2128908 is about 128.6428435703.

The spelling of 2128908 in words is "two million, one hundred twenty-eight thousand, nine hundred eight".