40866743 has 2 divisors, whose sum is σ = 40866744. Its totient is φ = 40866742.

The previous prime is 40866733. The next prime is 40866797. The reversal of 40866743 is 34766804.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40866743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40866697 and 40866706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40866733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20433371 + 20433372.

It is an arithmetic number, because the mean of its divisors is an integer number (20433372).

Almost surely, 2^40866743 is an apocalyptic number.

40866743 is a deficient number, since it is larger than the sum of its proper divisors (1).

40866743 is an equidigital number, since it uses as much as digits as its factorization.

40866743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 40866743 is about 6392.7101451575. The cubic root of 40866743 is about 344.4477420851.

The spelling of 40866743 in words is "forty million, eight hundred sixty-six thousand, seven hundred forty-three".