40342307 has 2 divisors, whose sum is σ = 40342308. Its totient is φ = 40342306.

The previous prime is 40342303. The next prime is 40342331. The reversal of 40342307 is 70324304.

It is a happy number.

40342307 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 40342307 - 2² = 40342303 is a prime.

It is not a weakly prime, because it can be changed into another prime (40342303) 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, 20171153 + 20171154.

It is an arithmetic number, because the mean of its divisors is an integer number (20171154).

Almost surely, 2^40342307 is an apocalyptic number.

40342307 is a deficient number, since it is larger than the sum of its proper divisors (1).

40342307 is an equidigital number, since it uses as much as digits as its factorization.

40342307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 40342307 is about 6351.5594148209. The cubic root of 40342307 is about 342.9679808727.

The spelling of 40342307 in words is "forty million, three hundred forty-two thousand, three hundred seven".