40914491 has 2 divisors, whose sum is σ = 40914492. Its totient is φ = 40914490.

The previous prime is 40914449. The next prime is 40914509. The reversal of 40914491 is 19441904.

40914491 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40914491 is a prime.

It is not a weakly prime, because it can be changed into another prime (40914691) 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, 20457245 + 20457246.

It is an arithmetic number, because the mean of its divisors is an integer number (20457246).

Almost surely, 2^40914491 is an apocalyptic number.

40914491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40914491 is an equidigital number, since it uses as much as digits as its factorization.

40914491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 40914491 is about 6396.4436212633. The cubic root of 40914491 is about 344.5818388134.

The spelling of 40914491 in words is "forty million, nine hundred fourteen thousand, four hundred ninety-one".