1444344389 has 2 divisors, whose sum is σ = 1444344390. Its totient is φ = 1444344388.

The previous prime is 1444344371. The next prime is 1444344431. The reversal of 1444344389 is 9834434441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946608289 + 497736100 = 30767^2 + 22310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444344389 - 2¹⁶ = 1444278853 is a prime.

It is a super-2 number, since 2×1444344389² = 4172261428071566642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444344289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722172194 + 722172195.

It is an arithmetic number, because the mean of its divisors is an integer number (722172195).

Almost surely, 2^1444344389 is an apocalyptic number.

It is an amenable number.

1444344389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444344389 is an equidigital number, since it uses as much as digits as its factorization.

1444344389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 44.

The square root of 1444344389 is about 38004.5311640599. The cubic root of 1444344389 is about 1130.3777130301.

The spelling of 1444344389 in words is "one billion, four hundred forty-four million, three hundred forty-four thousand, three hundred eighty-nine".