43441009 has 8 divisors (see below), whose sum is σ = 44024832. Its totient is φ = 42860400.

The previous prime is 43441007. The next prime is 43441031. The reversal of 43441009 is 90014434.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 43441009 - 2¹ = 43441007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43441007) 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, 38122 + ... + 39244.

It is an arithmetic number, because the mean of its divisors is an integer number (5503104).

Almost surely, 2^43441009 is an apocalyptic number.

It is an amenable number.

43441009 is a deficient number, since it is larger than the sum of its proper divisors (583823).

43441009 is a wasteful number, since it uses less digits than its factorization.

43441009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 43441009 is about 6590.9793657696. The cubic root of 43441009 is about 351.5334324043.

The spelling of 43441009 in words is "forty-three million, four hundred forty-one thousand, nine".