44443561 has 2 divisors, whose sum is σ = 44443562. Its totient is φ = 44443560.

The previous prime is 44443541. The next prime is 44443577. The reversal of 44443561 is 16534444.

44443561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41203561 + 3240000 = 6419^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 44443561 - 2⁷ = 44443433 is a prime.

It is a super-2 number, since 2×44443561² = 3950460228721442, which contains 22 as substring.

It is equal to p_2686531 and since 44443561 and 2686531 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (44443501) 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, 22221780 + 22221781.

It is an arithmetic number, because the mean of its divisors is an integer number (22221781).

Almost surely, 2^44443561 is an apocalyptic number.

It is an amenable number.

44443561 is a deficient number, since it is larger than the sum of its proper divisors (1).

44443561 is an equidigital number, since it uses as much as digits as its factorization.

44443561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 44443561 is about 6666.6004080041. The cubic root of 44443561 is about 354.2171760458.

The spelling of 44443561 in words is "forty-four million, four hundred forty-three thousand, five hundred sixty-one".