40044593 has 2 divisors, whose sum is σ = 40044594. Its totient is φ = 40044592.

The previous prime is 40044559. The next prime is 40044617. The reversal of 40044593 is 39544004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36385024 + 3659569 = 6032^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 40044593 - 2⁸ = 40044337 is a prime.

It is equal to p_2436185 and since 40044593 and 2436185 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 (40044293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022296 + 20022297.

It is an arithmetic number, because the mean of its divisors is an integer number (20022297).

Almost surely, 2^40044593 is an apocalyptic number.

It is an amenable number.

40044593 is a deficient number, since it is larger than the sum of its proper divisors (1).

40044593 is an equidigital number, since it uses as much as digits as its factorization.

40044593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40044593 is about 6328.0797245294. The cubic root of 40044593 is about 342.1222303998.

Adding to 40044593 its reverse (39544004), we get a palindrome (79588597).

The spelling of 40044593 in words is "forty million, forty-four thousand, five hundred ninety-three".