1444403729 has 2 divisors, whose sum is σ = 1444403730. Its totient is φ = 1444403728.

The previous prime is 1444403699. The next prime is 1444403747. The reversal of 1444403729 is 9273044441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1424911504 + 19492225 = 37748^2 + 4415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444403729 - 2¹⁶ = 1444338193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444403692 and 1444403701.

It is not a weakly prime, because it can be changed into another prime (1444406729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722201864 + 722201865.

It is an arithmetic number, because the mean of its divisors is an integer number (722201865).

Almost surely, 2^1444403729 is an apocalyptic number.

It is an amenable number.

1444403729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444403729 is an equidigital number, since it uses as much as digits as its factorization.

1444403729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1444403729 is about 38005.3118524240. The cubic root of 1444403729 is about 1130.3931931089.

The spelling of 1444403729 in words is "one billion, four hundred forty-four million, four hundred three thousand, seven hundred twenty-nine".