43427045 has 4 divisors (see below), whose sum is σ = 52112460. Its totient is φ = 34741632.

The previous prime is 43427029. The next prime is 43427047. The reversal of 43427045 is 54072434.

43427045 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.

It can be written as a sum of positive squares in 2 ways, for example, as 30481441 + 12945604 = 5521^2 + 3598^2 .

It is a cyclic number.

It is not a de Polignac number, because 43427045 - 2⁴ = 43427029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43426999 and 43427017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43427047) 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, 4342700 + ... + 4342709.

It is an arithmetic number, because the mean of its divisors is an integer number (13028115).

Almost surely, 2^43427045 is an apocalyptic number.

It is an amenable number.

43427045 is a deficient number, since it is larger than the sum of its proper divisors (8685415).

43427045 is an equidigital number, since it uses as much as digits as its factorization.

43427045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685414.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 43427045 is about 6589.9199539903. The cubic root of 43427045 is about 351.4957618634.

Adding to 43427045 its reverse (54072434), we get a palindrome (97499479).

The spelling of 43427045 in words is "forty-three million, four hundred twenty-seven thousand, forty-five".