4401641 has 2 divisors, whose sum is σ = 4401642. Its totient is φ = 4401640.

The previous prime is 4401601. The next prime is 4401653. The reversal of 4401641 is 1461044.

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., 2876416 + 1525225 = 1696^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 4401641 - 2¹⁸ = 4139497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4401601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200820 + 2200821.

It is an arithmetic number, because the mean of its divisors is an integer number (2200821).

Almost surely, 2^4401641 is an apocalyptic number.

It is an amenable number.

4401641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4401641 is an equidigital number, since it uses as much as digits as its factorization.

4401641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4401641 is about 2098.0088179033. The cubic root of 4401641 is about 163.8846228943.

Adding to 4401641 its reverse (1461044), we get a palindrome (5862685).

The spelling of 4401641 in words is "four million, four hundred one thousand, six hundred forty-one".