44045689 has 2 divisors, whose sum is σ = 44045690. Its totient is φ = 44045688.

The previous prime is 44045671. The next prime is 44045711. The reversal of 44045689 is 98654044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 2016400 = 6483^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 44045689 - 2²³ = 35657081 is a prime.

It is equal to p_2663977 and since 44045689 and 2663977 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 (44045609) 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, 22022844 + 22022845.

It is an arithmetic number, because the mean of its divisors is an integer number (22022845).

Almost surely, 2^44045689 is an apocalyptic number.

It is an amenable number.

44045689 is a deficient number, since it is larger than the sum of its proper divisors (1).

44045689 is an equidigital number, since it uses as much as digits as its factorization.

44045689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 44045689 is about 6636.6926250957. The cubic root of 44045689 is about 353.1569867806.

The spelling of 44045689 in words is "forty-four million, forty-five thousand, six hundred eighty-nine".