2305745 has 16 divisors (see below), whose sum is σ = 3138240. Its totient is φ = 1612224.

The previous prime is 2305733. The next prime is 2305747. The reversal of 2305745 is 5475032.

2305745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2305745 - 2¹⁰ = 2304721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2305747) 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 15 ways as a sum of consecutive naturals, for example, 302 + ... + 2168.

It is an arithmetic number, because the mean of its divisors is an integer number (196140).

2^2305745 is an apocalyptic number.

It is an amenable number.

2305745 is a deficient number, since it is larger than the sum of its proper divisors (832495).

2305745 is a wasteful number, since it uses less digits than its factorization.

2305745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2305745 is about 1518.4679779304. The cubic root of 2305745 is about 132.1104256562.

The spelling of 2305745 in words is "two million, three hundred five thousand, seven hundred forty-five".