44640043 has 8 divisors (see below), whose sum is σ = 51736320. Its totient is φ = 37723560.

The previous prime is 44639993. The next prime is 44640047. The reversal of 44640043 is 34004644.

It is a happy number.

44640043 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 not a de Polignac number, because 44640043 - 2²⁵ = 11085611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44640047) 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, 44413 + ... + 45406.

It is an arithmetic number, because the mean of its divisors is an integer number (6467040).

Almost surely, 2^44640043 is an apocalyptic number.

44640043 is a deficient number, since it is larger than the sum of its proper divisors (7096277).

44640043 is an equidigital number, since it uses as much as digits as its factorization.

44640043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89897.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 44640043 is about 6681.3204533236. The cubic root of 44640043 is about 354.7383988215.

Adding to 44640043 its reverse (34004644), we get a palindrome (78644687).

The spelling of 44640043 in words is "forty-four million, six hundred forty thousand, forty-three".