44023420021 has 16 divisors (see below), whose sum is σ = 50454835200. Its totient is φ = 37627693488.

The previous prime is 44023419977. The next prime is 44023420093. The reversal of 44023420021 is 12002432044.

It is a happy number.

It is not a de Polignac number, because 44023420021 - 2⁷ = 44023419893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44023419974 and 44023420001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44023420321) 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, 8734020 + ... + 8739058.

It is an arithmetic number, because the mean of its divisors is an integer number (3153427200).

Almost surely, 2^44023420021 is an apocalyptic number.

It is an amenable number.

44023420021 is a deficient number, since it is larger than the sum of its proper divisors (6431415179).

44023420021 is a wasteful number, since it uses less digits than its factorization.

44023420021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 44023420021 its reverse (12002432044), we get a palindrome (56025852065).

The spelling of 44023420021 in words is "forty-four billion, twenty-three million, four hundred twenty thousand, twenty-one".