441043961 has 2 divisors, whose sum is σ = 441043962. Its totient is φ = 441043960.

The previous prime is 441043957. The next prime is 441043987. The reversal of 441043961 is 169340144.

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., 414366736 + 26677225 = 20356^2 + 5165^2 .

It is a cyclic number.

It is not a de Polignac number, because 441043961 - 2² = 441043957 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 (441043931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220521980 + 220521981.

It is an arithmetic number, because the mean of its divisors is an integer number (220521981).

Almost surely, 2^441043961 is an apocalyptic number.

It is an amenable number.

441043961 is a deficient number, since it is larger than the sum of its proper divisors (1).

441043961 is an equidigital number, since it uses as much as digits as its factorization.

441043961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 441043961 is about 21001.0466643927. The cubic root of 441043961 is about 761.1915524990.

The spelling of 441043961 in words is "four hundred forty-one million, forty-three thousand, nine hundred sixty-one".