2443949 has 2 divisors, whose sum is σ = 2443950. Its totient is φ = 2443948.

The previous prime is 2443939. The next prime is 2443963. The reversal of 2443949 is 9493442.

2443949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 268324 = 1475^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2443949 - 2⁴ = 2443933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2443939) 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 as a sum of consecutive naturals, namely, 1221974 + 1221975.

It is an arithmetic number, because the mean of its divisors is an integer number (1221975).

2^2443949 is an apocalyptic number.

It is an amenable number.

2443949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2443949 is an equidigital number, since it uses as much as digits as its factorization.

2443949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 2443949 is about 1563.3134682462. The cubic root of 2443949 is about 134.6988991183.

The spelling of 2443949 in words is "two million, four hundred forty-three thousand, nine hundred forty-nine".