40966643 has 2 divisors, whose sum is σ = 40966644. Its totient is φ = 40966642.

The previous prime is 40966633. The next prime is 40966663. The reversal of 40966643 is 34666904.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40966643 - 2⁶ = 40966579 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 40966597 and 40966606.

It is not a weakly prime, because it can be changed into another prime (40966613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20483321 + 20483322.

It is an arithmetic number, because the mean of its divisors is an integer number (20483322).

Almost surely, 2^40966643 is an apocalyptic number.

40966643 is a deficient number, since it is larger than the sum of its proper divisors (1).

40966643 is an equidigital number, since it uses as much as digits as its factorization.

40966643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 40966643 is about 6400.5189633341. The cubic root of 40966643 is about 344.7281846968.

The spelling of 40966643 in words is "forty million, nine hundred sixty-six thousand, six hundred forty-three".