44320321 has 2 divisors, whose sum is σ = 44320322. Its totient is φ = 44320320.

The previous prime is 44320319. The next prime is 44320337. The reversal of 44320321 is 12302344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30924721 + 13395600 = 5561^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 44320321 - 2¹ = 44320319 is a prime.

Together with 44320319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44320301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22160160 + 22160161.

It is an arithmetic number, because the mean of its divisors is an integer number (22160161).

Almost surely, 2^44320321 is an apocalyptic number.

It is an amenable number.

44320321 is a deficient number, since it is larger than the sum of its proper divisors (1).

44320321 is an equidigital number, since it uses as much as digits as its factorization.

44320321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 44320321 is about 6657.3508995696. The cubic root of 44320321 is about 353.8894635043.

Adding to 44320321 its reverse (12302344), we get a palindrome (56622665).

The spelling of 44320321 in words is "forty-four million, three hundred twenty thousand, three hundred twenty-one".