40455440237 has 2 divisors, whose sum is σ = 40455440238. Its totient is φ = 40455440236.

The previous prime is 40455440203. The next prime is 40455440257. The reversal of 40455440237 is 73204455404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30427220356 + 10028219881 = 174434^2 + 100141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40455440237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40455440237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40455440257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227720118 + 20227720119.

It is an arithmetic number, because the mean of its divisors is an integer number (20227720119).

Almost surely, 2^40455440237 is an apocalyptic number.

It is an amenable number.

40455440237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455440237 is an equidigital number, since it uses as much as digits as its factorization.

40455440237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 38.

The spelling of 40455440237 in words is "forty billion, four hundred fifty-five million, four hundred forty thousand, two hundred thirty-seven".