44143769 has 2 divisors, whose sum is σ = 44143770. Its totient is φ = 44143768.

The previous prime is 44143691. The next prime is 44143777. The reversal of 44143769 is 96734144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 3948169 = 6340^2 + 1987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44143769 is a prime.

It is a super-2 number, since 2×44143769² = 3897344683050722, which contains 22 as substring.

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 (44145769) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22071884 + 22071885.

It is an arithmetic number, because the mean of its divisors is an integer number (22071885).

Almost surely, 2^44143769 is an apocalyptic number.

It is an amenable number.

44143769 is a deficient number, since it is larger than the sum of its proper divisors (1).

44143769 is an equidigital number, since it uses as much as digits as its factorization.

44143769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 44143769 is about 6644.0777388589. The cubic root of 44143769 is about 353.4189265958.

The spelling of 44143769 in words is "forty-four million, one hundred forty-three thousand, seven hundred sixty-nine".