40440383 has 2 divisors, whose sum is σ = 40440384. Its totient is φ = 40440382.

The previous prime is 40440373. The next prime is 40440397. The reversal of 40440383 is 38304404.

It is a happy number.

40440383 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 is a cyclic number.

It is not a de Polignac number, because 40440383 - 2⁶ = 40440319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40440313) 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, 20220191 + 20220192.

It is an arithmetic number, because the mean of its divisors is an integer number (20220192).

Almost surely, 2^40440383 is an apocalyptic number.

40440383 is a deficient number, since it is larger than the sum of its proper divisors (1).

40440383 is an equidigital number, since it uses as much as digits as its factorization.

40440383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 40440383 is about 6359.2753517991. The cubic root of 40440383 is about 343.2456852543.

Adding to 40440383 its reverse (38304404), we get a palindrome (78744787).

The spelling of 40440383 in words is "forty million, four hundred forty thousand, three hundred eighty-three".