43908049 has 2 divisors, whose sum is σ = 43908050. Its totient is φ = 43908048.

The previous prime is 43908047. The next prime is 43908077. The reversal of 43908049 is 94080934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 17424 = 6625^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 43908049 - 2¹ = 43908047 is a prime.

Together with 43908047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43907999 and 43908017.

It is not a weakly prime, because it can be changed into another prime (43908043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21954024 + 21954025.

It is an arithmetic number, because the mean of its divisors is an integer number (21954025).

Almost surely, 2^43908049 is an apocalyptic number.

It is an amenable number.

43908049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43908049 is an equidigital number, since it uses as much as digits as its factorization.

43908049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 43908049 is about 6626.3148883825. The cubic root of 43908049 is about 352.7887384933.

The spelling of 43908049 in words is "forty-three million, nine hundred eight thousand, forty-nine".