40450393 has 2 divisors, whose sum is σ = 40450394. Its totient is φ = 40450392.

The previous prime is 40450391. The next prime is 40450433. The reversal of 40450393 is 39305404.

40450393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37112464 + 3337929 = 6092^2 + 1827^2 .

It is a cyclic number.

It is not a de Polignac number, because 40450393 - 2¹ = 40450391 is a prime.

Together with 40450391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40450391) 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, 20225196 + 20225197.

It is an arithmetic number, because the mean of its divisors is an integer number (20225197).

Almost surely, 2^40450393 is an apocalyptic number.

It is an amenable number.

40450393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40450393 is an equidigital number, since it uses as much as digits as its factorization.

40450393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40450393 is about 6360.0623424617. The cubic root of 40450393 is about 343.2740035309.

Adding to 40450393 its reverse (39305404), we get a palindrome (79755797).

The spelling of 40450393 in words is "forty million, four hundred fifty thousand, three hundred ninety-three".