40964491 has 2 divisors, whose sum is σ = 40964492. Its totient is φ = 40964490.

The previous prime is 40964477. The next prime is 40964503. The reversal of 40964491 is 19446904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40964491 - 2⁵ = 40964459 is a 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 40964491.

It is not a weakly prime, because it can be changed into another prime (40964411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20482245 + 20482246.

It is an arithmetic number, because the mean of its divisors is an integer number (20482246).

Almost surely, 2^40964491 is an apocalyptic number.

40964491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40964491 is an equidigital number, since it uses as much as digits as its factorization.

40964491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 40964491 is about 6400.3508497582. The cubic root of 40964491 is about 344.7221483382.

The spelling of 40964491 in words is "forty million, nine hundred sixty-four thousand, four hundred ninety-one".