2809122 has 8 divisors (see below), whose sum is σ = 5618256. Its totient is φ = 936372.

The previous prime is 2809117. The next prime is 2809141. The reversal of 2809122 is 2219082.

2809122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2809122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2809092 and 2809101.

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, 234088 + ... + 234099.

It is an arithmetic number, because the mean of its divisors is an integer number (702282).

2^2809122 is an apocalyptic number.

2809122 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.

2809122 is a wasteful number, since it uses less digits than its factorization.

2809122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468192.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2809122 is about 1676.0435555200. The cubic root of 2809122 is about 141.0988693417.

The spelling of 2809122 in words is "two million, eight hundred nine thousand, one hundred twenty-two".