44300021 has 2 divisors, whose sum is σ = 44300022. Its totient is φ = 44300020.

The previous prime is 44299999. The next prime is 44300029. The reversal of 44300021 is 12000344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 555025 = 6614^2 + 745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44300021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44299969 and 44300005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44300029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22150010 + 22150011.

It is an arithmetic number, because the mean of its divisors is an integer number (22150011).

Almost surely, 2^44300021 is an apocalyptic number.

It is an amenable number.

44300021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44300021 is an equidigital number, since it uses as much as digits as its factorization.

44300021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 44300021 is about 6655.8260944829. The cubic root of 44300021 is about 353.8354246868.

Adding to 44300021 its reverse (12000344), we get a palindrome (56300365).

The spelling of 44300021 in words is "forty-four million, three hundred thousand, twenty-one".