40441393 has 2 divisors, whose sum is σ = 40441394. Its totient is φ = 40441392.

The previous prime is 40441381. The next prime is 40441409. The reversal of 40441393 is 39314404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34951744 + 5489649 = 5912^2 + 2343^2 .

It is a cyclic number.

It is not a de Polignac number, because 40441393 - 2⁵ = 40441361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40441363) 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, 20220696 + 20220697.

It is an arithmetic number, because the mean of its divisors is an integer number (20220697).

Almost surely, 2^40441393 is an apocalyptic number.

It is an amenable number.

40441393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40441393 is an equidigital number, since it uses as much as digits as its factorization.

40441393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40441393 is about 6359.3547628671. The cubic root of 40441393 is about 343.2485427549.

Adding to 40441393 its reverse (39314404), we get a palindrome (79755797).

The spelling of 40441393 in words is "forty million, four hundred forty-one thousand, three hundred ninety-three".