1441644973 has 2 divisors, whose sum is σ = 1441644974. Its totient is φ = 1441644972.

The previous prime is 1441644947. The next prime is 1441644977. The reversal of 1441644973 is 3794461441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 801909124 + 639735849 = 28318^2 + 25293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441644973 - 2⁹ = 1441644461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441644977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720822486 + 720822487.

It is an arithmetic number, because the mean of its divisors is an integer number (720822487).

Almost surely, 2^1441644973 is an apocalyptic number.

It is an amenable number.

1441644973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441644973 is an equidigital number, since it uses as much as digits as its factorization.

1441644973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 1441644973 is about 37969.0001580237. Note that the first 3 decimals coincide. The cubic root of 1441644973 is about 1129.6730651552.

The spelling of 1441644973 in words is "one billion, four hundred forty-one million, six hundred forty-four thousand, nine hundred seventy-three".