2305666 has 8 divisors (see below), whose sum is σ = 3772944. Its totient is φ = 1048020.

The previous prime is 2305651. The next prime is 2305691. The reversal of 2305666 is 6665032.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52380 + ... + 52423.

It is an arithmetic number, because the mean of its divisors is an integer number (471618).

2^2305666 is an apocalyptic number.

2305666 is a deficient number, since it is larger than the sum of its proper divisors (1467278).

2305666 is a wasteful number, since it uses less digits than its factorization.

2305666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104816.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2305666 is about 1518.4419646467. The cubic root of 2305666 is about 132.1089168390.

The spelling of 2305666 in words is "two million, three hundred five thousand, six hundred sixty-six".