43241399 has 2 divisors, whose sum is σ = 43241400. Its totient is φ = 43241398.

The previous prime is 43241389. The next prime is 43241453. The reversal of 43241399 is 99314234.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43241399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43241309) 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, 21620699 + 21620700.

It is an arithmetic number, because the mean of its divisors is an integer number (21620700).

Almost surely, 2^43241399 is an apocalyptic number.

43241399 is a deficient number, since it is larger than the sum of its proper divisors (1).

43241399 is an equidigital number, since it uses as much as digits as its factorization.

43241399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 43241399 is about 6575.8192645480. The cubic root of 43241399 is about 350.9941774399.

The spelling of 43241399 in words is "forty-three million, two hundred forty-one thousand, three hundred ninety-nine".