44243309 has 8 divisors (see below), whose sum is σ = 49292928. Its totient is φ = 39364960.

The previous prime is 44243291. The next prime is 44243317. The reversal of 44243309 is 90334244.

44243309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-44243309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44243369) 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 7 ways as a sum of consecutive naturals, for example, 42272 + ... + 43305.

It is an arithmetic number, because the mean of its divisors is an integer number (6161616).

Almost surely, 2^44243309 is an apocalyptic number.

It is an amenable number.

44243309 is a deficient number, since it is larger than the sum of its proper divisors (5049619).

44243309 is a wasteful number, since it uses less digits than its factorization.

44243309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85635.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 44243309 is about 6651.5644024545. The cubic root of 44243309 is about 353.6843692001.

It can be divided in two parts, 442 and 43309, that multiplied together give a triangular number (19142578 = T₆₁₈₇).

The spelling of 44243309 in words is "forty-four million, two hundred forty-three thousand, three hundred nine".