2660306 has 12 divisors (see below), whose sum is σ = 4386606. Its totient is φ = 1209120.

The previous prime is 2660303. The next prime is 2660311. The reversal of 2660306 is 6030662.

2660306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2544025 + 116281 = 1595^2 + 341^2 .

It is not an unprimeable number, because it can be changed into a prime (2660303) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5255 + ... + 5738.

2^2660306 is an apocalyptic number.

2660306 is a deficient number, since it is larger than the sum of its proper divisors (1726300).

2660306 is a wasteful number, since it uses less digits than its factorization.

2660306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017 (or 11006 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2660306 is about 1631.0444506512. The cubic root of 2660306 is about 138.5619110924.

Adding to 2660306 its reverse (6030662), we get a palindrome (8690968).

The spelling of 2660306 in words is "two million, six hundred sixty thousand, three hundred six".