1444421423 has 2 divisors, whose sum is σ = 1444421424. Its totient is φ = 1444421422.

The previous prime is 1444421411. The next prime is 1444421453. The reversal of 1444421423 is 3241244441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1444421423 - 2¹² = 1444417327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444421453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722210711 + 722210712.

It is an arithmetic number, because the mean of its divisors is an integer number (722210712).

Almost surely, 2^1444421423 is an apocalyptic number.

1444421423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444421423 is an equidigital number, since it uses as much as digits as its factorization.

1444421423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 29.

The square root of 1444421423 is about 38005.5446349608. The cubic root of 1444421423 is about 1130.3978088765.

Adding to 1444421423 its reverse (3241244441), we get a palindrome (4685665864).

The spelling of 1444421423 in words is "one billion, four hundred forty-four million, four hundred twenty-one thousand, four hundred twenty-three".