2305949 has 2 divisors, whose sum is σ = 2305950. Its totient is φ = 2305948.

The previous prime is 2305909. The next prime is 2305967. The reversal of 2305949 is 9495032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 85849 = 1490^2 + 293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2305949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2305909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152974 + 1152975.

It is an arithmetic number, because the mean of its divisors is an integer number (1152975).

2^2305949 is an apocalyptic number.

It is an amenable number.

2305949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2305949 is an equidigital number, since it uses as much as digits as its factorization.

2305949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2305949 is about 1518.5351494121. The cubic root of 2305949 is about 132.1143216828.

The spelling of 2305949 in words is "two million, three hundred five thousand, nine hundred forty-nine".