1002443441 has 2 divisors, whose sum is σ = 1002443442. Its totient is φ = 1002443440.

The previous prime is 1002443423. The next prime is 1002443473. The reversal of 1002443441 is 1443442001.

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., 541911841 + 460531600 = 23279^2 + 21460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002443441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1002443411) 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, 501221720 + 501221721.

It is an arithmetic number, because the mean of its divisors is an integer number (501221721).

Almost surely, 2^1002443441 is an apocalyptic number.

It is an amenable number.

1002443441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002443441 is an equidigital number, since it uses as much as digits as its factorization.

1002443441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1002443441 is about 31661.3872248201. The cubic root of 1002443441 is about 1000.8138178542.

Adding to 1002443441 its reverse (1443442001), we get a palindrome (2445885442).

The spelling of 1002443441 in words is "one billion, two million, four hundred forty-three thousand, four hundred forty-one".