40450439 has 2 divisors, whose sum is σ = 40450440. Its totient is φ = 40450438.

The previous prime is 40450433. The next prime is 40450451. The reversal of 40450439 is 93405404.

40450439 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 40450439 - 2²⁰ = 39401863 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40450433) 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, 20225219 + 20225220.

It is an arithmetic number, because the mean of its divisors is an integer number (20225220).

Almost surely, 2^40450439 is an apocalyptic number.

40450439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40450439 is an equidigital number, since it uses as much as digits as its factorization.

40450439 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 40450439 is about 6360.0659587775. The cubic root of 40450439 is about 343.2741336541.

The spelling of 40450439 in words is "forty million, four hundred fifty thousand, four hundred thirty-nine".