1444344289 has 2 divisors, whose sum is σ = 1444344290. Its totient is φ = 1444344288.

The previous prime is 1444344277. The next prime is 1444344323. The reversal of 1444344289 is 9824434441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1331666064 + 112678225 = 36492^2 + 10615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444344289 - 2¹¹ = 1444342241 is a prime.

It is a super-2 number, since 2×1444344289² = 4172260850333831042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1444344389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722172144 + 722172145.

It is an arithmetic number, because the mean of its divisors is an integer number (722172145).

Almost surely, 2^1444344289 is an apocalyptic number.

It is an amenable number.

1444344289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444344289 is an equidigital number, since it uses as much as digits as its factorization.

1444344289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 43.

The square root of 1444344289 is about 38004.5298484273. The cubic root of 1444344289 is about 1130.3776869427.

The spelling of 1444344289 in words is "one billion, four hundred forty-four million, three hundred forty-four thousand, two hundred eighty-nine".