2112306 has 32 divisors (see below), whose sum is σ = 5084160. Its totient is φ = 571536.

The previous prime is 2112263. The next prime is 2112307. The reversal of 2112306 is 6032112.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2112307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (158880).

2^2112306 is an apocalyptic number.

2112306 is an abundant number, since it is smaller than the sum of its proper divisors (2971854).

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

2112306 is a wasteful number, since it uses less digits than its factorization.

2112306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2112306 is about 1453.3774458137. The cubic root of 2112306 is about 128.3075692737.

Adding to 2112306 its reverse (6032112), we get a palindrome (8144418).

The spelling of 2112306 in words is "two million, one hundred twelve thousand, three hundred six".