44320310021 has 16 divisors (see below), whose sum is σ = 48005218800. Its totient is φ = 40675074048.

The previous prime is 44320310017. The next prime is 44320310039. The reversal of 44320310021 is 12001302344.

It can be written as a sum of positive squares in 8 ways, for example, as 762532996 + 43557777025 = 27614^2 + 208705^2 .

It is a cyclic number.

It is not a de Polignac number, because 44320310021 - 2² = 44320310017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44320309975 and 44320310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44320312021) 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, 4269125 + ... + 4279493.

It is an arithmetic number, because the mean of its divisors is an integer number (3000326175).

Almost surely, 2^44320310021 is an apocalyptic number.

It is an amenable number.

44320310021 is a deficient number, since it is larger than the sum of its proper divisors (3684908779).

44320310021 is a wasteful number, since it uses less digits than its factorization.

44320310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 44320310021 its reverse (12001302344), we get a palindrome (56321612365).

The spelling of 44320310021 in words is "forty-four billion, three hundred twenty million, three hundred ten thousand, twenty-one".