43004441 has 8 divisors (see below), whose sum is σ = 45591624. Its totient is φ = 40423680.

The previous prime is 43004431. The next prime is 43004447. The reversal of 43004441 is 14440034.

It can be written as a sum of positive squares in 4 ways, for example, as 9120400 + 33884041 = 3020^2 + 5821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43004441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43004447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23831 + ... + 25571.

It is an arithmetic number, because the mean of its divisors is an integer number (5698953).

Almost surely, 2^43004441 is an apocalyptic number.

It is an amenable number.

43004441 is a deficient number, since it is larger than the sum of its proper divisors (2587183).

43004441 is a wasteful number, since it uses less digits than its factorization.

43004441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 43004441 is about 6557.7771386347. Note that the first 3 decimals coincide. The cubic root of 43004441 is about 350.3518665466.

Adding to 43004441 its reverse (14440034), we get a palindrome (57444475).

The spelling of 43004441 in words is "forty-three million, four thousand, four hundred forty-one".