2128898 has 8 divisors (see below), whose sum is σ = 3201660. Its totient is φ = 1061680.

The previous prime is 2128891. The next prime is 2128933. The reversal of 2128898 is 8988212.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 17689 = 1453^2 + 133^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2128891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 2076.

2^2128898 is an apocalyptic number.

2128898 is a deficient number, since it is larger than the sum of its proper divisors (1072762).

2128898 is a wasteful number, since it uses less digits than its factorization.

2128898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its digits is 18432, while the sum is 38.

The square root of 2128898 is about 1459.0743641090. The cubic root of 2128898 is about 128.6426421478.

The spelling of 2128898 in words is "two million, one hundred twenty-eight thousand, eight hundred ninety-eight".