40976491 has 2 divisors, whose sum is σ = 40976492. Its totient is φ = 40976490.

The previous prime is 40976489. The next prime is 40976497. The reversal of 40976491 is 19467904.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40976491 - 2¹ = 40976489 is a prime.

Together with 40976489, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40976497) 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, 20488245 + 20488246.

It is an arithmetic number, because the mean of its divisors is an integer number (20488246).

Almost surely, 2^40976491 is an apocalyptic number.

40976491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40976491 is an equidigital number, since it uses as much as digits as its factorization.

40976491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 40976491 is about 6401.2882297238. The cubic root of 40976491 is about 344.7558056335.

The spelling of 40976491 in words is "forty million, nine hundred seventy-six thousand, four hundred ninety-one".