40671263 has 2 divisors, whose sum is σ = 40671264. Its totient is φ = 40671262.

The previous prime is 40671217. The next prime is 40671277. The reversal of 40671263 is 36217604.

40671263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40671263 - 2¹⁴ = 40654879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40671203) 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, 20335631 + 20335632.

It is an arithmetic number, because the mean of its divisors is an integer number (20335632).

Almost surely, 2^40671263 is an apocalyptic number.

40671263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40671263 is an equidigital number, since it uses as much as digits as its factorization.

40671263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40671263 is about 6377.4025276754. The cubic root of 40671263 is about 343.8976591859.

Adding to 40671263 its reverse (36217604), we get a palindrome (76888867).

The spelling of 40671263 in words is "forty million, six hundred seventy-one thousand, two hundred sixty-three".