43440241 has 4 divisors (see below), whose sum is σ = 46781812. Its totient is φ = 40098672.

The previous prime is 43440239. The next prime is 43440263. The reversal of 43440241 is 14204434.

43440241 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 19713600 + 23726641 = 4440^2 + 4871^2 .

It is a cyclic number.

It is not a de Polignac number, because 43440241 - 2¹ = 43440239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43440841) 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, 1670766 + ... + 1670791.

It is an arithmetic number, because the mean of its divisors is an integer number (11695453).

Almost surely, 2^43440241 is an apocalyptic number.

It is an amenable number.

43440241 is a deficient number, since it is larger than the sum of its proper divisors (3341571).

43440241 is a wasteful number, since it uses less digits than its factorization.

43440241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341570.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 43440241 is about 6590.9211040643. The cubic root of 43440241 is about 351.5313607883.

Adding to 43440241 its reverse (14204434), we get a palindrome (57644675).

It can be divided in two parts, 43440 and 241, that added together give a square (43681 = 209²).

The spelling of 43440241 in words is "forty-three million, four hundred forty thousand, two hundred forty-one".