44631421 has 2 divisors, whose sum is σ = 44631422. Its totient is φ = 44631420.

The previous prime is 44631401. The next prime is 44631427. The reversal of 44631421 is 12413644.

44631421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 1466521 = 6570^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 44631421 - 2¹¹ = 44629373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44631427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22315710 + 22315711.

It is an arithmetic number, because the mean of its divisors is an integer number (22315711).

Almost surely, 2^44631421 is an apocalyptic number.

It is an amenable number.

44631421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44631421 is an equidigital number, since it uses as much as digits as its factorization.

44631421 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 44631421 is about 6680.6751904280. The cubic root of 44631421 is about 354.7155587045.

The spelling of 44631421 in words is "forty-four million, six hundred thirty-one thousand, four hundred twenty-one".