44024040021 has 16 divisors (see below), whose sum is σ = 66932478144. Its totient is φ = 25498086144.

The previous prime is 44024040019. The next prime is 44024040059. The reversal of 44024040021 is 12004042044.

It is not a de Polignac number, because 44024040021 - 2¹ = 44024040019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44024040021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44024040001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33199971 + ... + 33201296.

It is an arithmetic number, because the mean of its divisors is an integer number (4183279884).

Almost surely, 2^44024040021 is an apocalyptic number.

It is an amenable number.

44024040021 is a deficient number, since it is larger than the sum of its proper divisors (22908438123).

44024040021 is a wasteful number, since it uses less digits than its factorization.

44024040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66401300.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 44024040021 its reverse (12004042044), we get a palindrome (56028082065).

The spelling of 44024040021 in words is "forty-four billion, twenty-four million, forty thousand, twenty-one".