43438379 has 4 divisors (see below), whose sum is σ = 43452576. Its totient is φ = 43424184.

The previous prime is 43438363. The next prime is 43438391. The reversal of 43438379 is 97383434.

43438379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 43438379 - 2⁴ = 43438363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43438399) 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 in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 9329.

It is an arithmetic number, because the mean of its divisors is an integer number (10863144).

Almost surely, 2^43438379 is an apocalyptic number.

43438379 is a deficient number, since it is larger than the sum of its proper divisors (14197).

43438379 is an equidigital number, since it uses as much as digits as its factorization.

43438379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14196.

The product of its digits is 217728, while the sum is 41.

The square root of 43438379 is about 6590.7798476356. The cubic root of 43438379 is about 351.5263380971.

The spelling of 43438379 in words is "forty-three million, four hundred thirty-eight thousand, three hundred seventy-nine".