40344371 has 2 divisors, whose sum is σ = 40344372. Its totient is φ = 40344370.

The previous prime is 40344329. The next prime is 40344407. The reversal of 40344371 is 17344304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40344371 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40344371.

It is not a weakly prime, because it can be changed into another prime (40344301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172185 + 20172186.

It is an arithmetic number, because the mean of its divisors is an integer number (20172186).

Almost surely, 2^40344371 is an apocalyptic number.

40344371 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344371 is an equidigital number, since it uses as much as digits as its factorization.

40344371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 40344371 is about 6351.7218925265. The cubic root of 40344371 is about 342.9738297684.

Adding to 40344371 its reverse (17344304), we get a palindrome (57688675).

The spelling of 40344371 in words is "forty million, three hundred forty-four thousand, three hundred seventy-one".