40664179 has 2 divisors, whose sum is σ = 40664180. Its totient is φ = 40664178.

The previous prime is 40664101. The next prime is 40664209. The reversal of 40664179 is 97146604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40664179 - 2¹¹ = 40662131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40664279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20332089 + 20332090.

It is an arithmetic number, because the mean of its divisors is an integer number (20332090).

Almost surely, 2^40664179 is an apocalyptic number.

40664179 is a deficient number, since it is larger than the sum of its proper divisors (1).

40664179 is an equidigital number, since it uses as much as digits as its factorization.

40664179 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 40664179 is about 6376.8471049571. The cubic root of 40664179 is about 343.8776916684.

The spelling of 40664179 in words is "forty million, six hundred sixty-four thousand, one hundred seventy-nine".