40967491 has 2 divisors, whose sum is σ = 40967492. Its totient is φ = 40967490.

The previous prime is 40967489. The next prime is 40967513. The reversal of 40967491 is 19476904.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40967491 - 2¹ = 40967489 is a prime.

Together with 40967489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40967441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20483745 + 20483746.

It is an arithmetic number, because the mean of its divisors is an integer number (20483746).

Almost surely, 2^40967491 is an apocalyptic number.

40967491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40967491 is an equidigital number, since it uses as much as digits as its factorization.

40967491 is an evil number, because the sum of its binary digits is even.

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

The square root of 40967491 is about 6400.5852076197. The cubic root of 40967491 is about 344.7305632782.

The spelling of 40967491 in words is "forty million, nine hundred sixty-seven thousand, four hundred ninety-one".