44316421 has 2 divisors, whose sum is σ = 44316422. Its totient is φ = 44316420.

The previous prime is 44316409. The next prime is 44316431. The reversal of 44316421 is 12461344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44076321 + 240100 = 6639^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 44316421 - 2¹⁵ = 44283653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44316431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22158210 + 22158211.

It is an arithmetic number, because the mean of its divisors is an integer number (22158211).

Almost surely, 2^44316421 is an apocalyptic number.

It is an amenable number.

44316421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44316421 is an equidigital number, since it uses as much as digits as its factorization.

44316421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 44316421 is about 6657.0579838244. The cubic root of 44316421 is about 353.8790829432.

Adding to 44316421 its reverse (12461344), we get a palindrome (56777765).

The spelling of 44316421 in words is "forty-four million, three hundred sixteen thousand, four hundred twenty-one".