43855441 has 6 divisors (see below), whose sum is σ = 51015570. Its totient is φ = 37590336.

The previous prime is 43855429. The next prime is 43855447. The reversal of 43855441 is 14455834.

43855441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 13660416 = 5495^2 + 3696^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43855441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43855397 and 43855406.

It is not an unprimeable number, because it can be changed into a prime (43855447) 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 5 ways as a sum of consecutive naturals, for example, 447456 + ... + 447553.

It is an arithmetic number, because the mean of its divisors is an integer number (8502595).

Almost surely, 2^43855441 is an apocalyptic number.

It is an amenable number.

43855441 is a deficient number, since it is larger than the sum of its proper divisors (7160129).

43855441 is an equidigital number, since it uses as much as digits as its factorization.

43855441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895023 (or 895016 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 43855441 is about 6622.3440713995. The cubic root of 43855441 is about 352.6477853909.

The spelling of 43855441 in words is "forty-three million, eight hundred fifty-five thousand, four hundred forty-one".