40344971 has 2 divisors, whose sum is σ = 40344972. Its totient is φ = 40344970.

The previous prime is 40344959. The next prime is 40345001. The reversal of 40344971 is 17944304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40344971 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40344371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172485 + 20172486.

It is an arithmetic number, because the mean of its divisors is an integer number (20172486).

Almost surely, 2^40344971 is an apocalyptic number.

40344971 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344971 is an equidigital number, since it uses as much as digits as its factorization.

40344971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40344971 is about 6351.7691236379. The cubic root of 40344971 is about 342.9755299914.

The spelling of 40344971 in words is "forty million, three hundred forty-four thousand, nine hundred seventy-one".