43643041 has 4 divisors (see below), whose sum is σ = 47000212. Its totient is φ = 40285872.

The previous prime is 43643023. The next prime is 43643059. The reversal of 43643041 is 14034634.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14034634 = 2 ⋅7017317.

It is an interprime number because it is at equal distance from previous prime (43643023) and next prime (43643059).

It can be written as a sum of positive squares in 2 ways, for example, as 18241441 + 25401600 = 4271^2 + 5040^2 .

It is a cyclic number.

It is not a de Polignac number, because 43643041 - 2⁷ = 43642913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43642997 and 43643015.

It is not an unprimeable number, because it can be changed into a prime (43643141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678566 + ... + 1678591.

It is an arithmetic number, because the mean of its divisors is an integer number (11750053).

Almost surely, 2^43643041 is an apocalyptic number.

It is an amenable number.

43643041 is a deficient number, since it is larger than the sum of its proper divisors (3357171).

43643041 is a wasteful number, since it uses less digits than its factorization.

43643041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357170.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 43643041 is about 6606.2879894840. The cubic root of 43643041 is about 352.0775510303.

Adding to 43643041 its reverse (14034634), we get a palindrome (57677675).

The spelling of 43643041 in words is "forty-three million, six hundred forty-three thousand, forty-one".