2444322421 has 2 divisors, whose sum is σ = 2444322422. Its totient is φ = 2444322420.

The previous prime is 2444322403. The next prime is 2444322427. The reversal of 2444322421 is 1242234442.

2444322421 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., 2051093521 + 393228900 = 45289^2 + 19830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2444322421 - 2⁵ = 2444322389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2444322421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2444322427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222161210 + 1222161211.

It is an arithmetic number, because the mean of its divisors is an integer number (1222161211).

Almost surely, 2^2444322421 is an apocalyptic number.

It is an amenable number.

2444322421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2444322421 is an equidigital number, since it uses as much as digits as its factorization.

2444322421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 28.

The square root of 2444322421 is about 49440.0892090619. The cubic root of 2444322421 is about 1347.0575916817.

Adding to 2444322421 its reverse (1242234442), we get a palindrome (3686556863).

It can be divided in two parts, 24443 and 22421, that added together give a palindrome (46864).

The spelling of 2444322421 in words is "two billion, four hundred forty-four million, three hundred twenty-two thousand, four hundred twenty-one".