22128006 has 8 divisors (see below), whose sum is σ = 44256024. Its totient is φ = 7376000.

The previous prime is 22127947. The next prime is 22128011. The reversal of 22128006 is 60082122.

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

22128006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843995 + ... + 1844006.

It is an arithmetic number, because the mean of its divisors is an integer number (5532003).

Almost surely, 2^22128006 is an apocalyptic number.

22128006 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.

22128006 is a wasteful number, since it uses less digits than its factorization.

22128006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688006.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22128006 is about 4704.0414538990. The cubic root of 22128006 is about 280.7463337266.

The spelling of 22128006 in words is "twenty-two million, one hundred twenty-eight thousand, six".