1002444449 has 2 divisors, whose sum is σ = 1002444450. Its totient is φ = 1002444448.

The previous prime is 1002444439. The next prime is 1002444473. The reversal of 1002444449 is 9444442001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521300224 + 481144225 = 22832^2 + 21935^2 .

It is an emirp because it is prime and its reverse (9444442001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002444449 - 2⁴ = 1002444433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002444439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501222224 + 501222225.

It is an arithmetic number, because the mean of its divisors is an integer number (501222225).

Almost surely, 2^1002444449 is an apocalyptic number.

It is an amenable number.

1002444449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002444449 is an equidigital number, since it uses as much as digits as its factorization.

1002444449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1002444449 is about 31661.4031432595. The cubic root of 1002444449 is about 1000.8141533078.

The spelling of 1002444449 in words is "one billion, two million, four hundred forty-four thousand, four hundred forty-nine".