2306 has 4 divisors (see below), whose sum is σ = 3462.
Its totient is φ = 1152.
The previous prime is 2297. The next prime is 2309. The reversal of 2306 is 6032.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 1681 + 625 = 41^2 + 25^2
It is a nialpdrome in base 5 and base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2309) by changing a digit.
2306 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (3) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575 + ... + 578.
22306 is an apocalyptic number.
2306 is a deficient number, since it is larger than the sum of its proper divisors (1156).
2306 is a wasteful number, since it uses less digits than its factorization.
2306 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1155.
The product of its (nonzero) digits is 36, while the sum is 11.
The square root of 2306 is about 48.0208288142.
The cubic root of 2306 is about 13.2115295654.
Adding to 2306 its reverse (6032), we get a palindrome (8338).
The spelling of 2306 in words is "two thousand, three hundred six".