2128422 has 8 divisors (see below), whose sum is σ = 4256856. Its totient is φ = 709472.

The previous prime is 2128409. The next prime is 2128439. The reversal of 2128422 is 2248212.

It is a happy number.

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

2128422 is an admirable number.

It is a congruent number.

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, 177363 + ... + 177374.

It is an arithmetic number, because the mean of its divisors is an integer number (532107).

2^2128422 is an apocalyptic number.

2128422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2128422 is a wasteful number, since it uses less digits than its factorization.

2128422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354742.

The product of its digits is 512, while the sum is 21.

The square root of 2128422 is about 1458.9112378757. The cubic root of 2128422 is about 128.6330537031.

The spelling of 2128422 in words is "two million, one hundred twenty-eight thousand, four hundred twenty-two".