43889249 has 2 divisors, whose sum is σ = 43889250. Its totient is φ = 43889248.

The previous prime is 43889231. The next prime is 43889281. The reversal of 43889249 is 94298834.

43889249 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., 26708224 + 17181025 = 5168^2 + 4145^2 .

It is a cyclic number.

It is not a de Polignac number, because 43889249 - 2¹⁶ = 43823713 is a prime.

It is not a weakly prime, because it can be changed into another prime (43889749) 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, 21944624 + 21944625.

It is an arithmetic number, because the mean of its divisors is an integer number (21944625).

Almost surely, 2^43889249 is an apocalyptic number.

It is an amenable number.

43889249 is a deficient number, since it is larger than the sum of its proper divisors (1).

43889249 is an equidigital number, since it uses as much as digits as its factorization.

43889249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 43889249 is about 6624.8961501294. The cubic root of 43889249 is about 352.7383804135.

The spelling of 43889249 in words is "forty-three million, eight hundred eighty-nine thousand, two hundred forty-nine".