40068937 has 2 divisors, whose sum is σ = 40068938. Its totient is φ = 40068936.

The previous prime is 40068913. The next prime is 40068947. The reversal of 40068937 is 73986004.

40068937 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 can be written as a sum of positive squares in only one way, i.e., 24890121 + 15178816 = 4989^2 + 3896^2 .

It is a cyclic number.

It is not a de Polignac number, because 40068937 - 2²³ = 31680329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40068896 and 40068905.

It is not a weakly prime, because it can be changed into another prime (40068947) 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, 20034468 + 20034469.

It is an arithmetic number, because the mean of its divisors is an integer number (20034469).

Almost surely, 2^40068937 is an apocalyptic number.

It is an amenable number.

40068937 is a deficient number, since it is larger than the sum of its proper divisors (1).

40068937 is an equidigital number, since it uses as much as digits as its factorization.

40068937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 40068937 is about 6330.0029225902. The cubic root of 40068937 is about 342.1915442639.

Subtracting from 40068937 its sum of digits (37), we obtain a square (40068900 = 6330²).

The spelling of 40068937 in words is "forty million, sixty-eight thousand, nine hundred thirty-seven".