40355683 has 2 divisors, whose sum is σ = 40355684. Its totient is φ = 40355682.

The previous prime is 40355681. The next prime is 40355699. The reversal of 40355683 is 38655304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40355683 - 2¹ = 40355681 is a prime.

Together with 40355681, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40355681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177841 + 20177842.

It is an arithmetic number, because the mean of its divisors is an integer number (20177842).

Almost surely, 2^40355683 is an apocalyptic number.

40355683 is a deficient number, since it is larger than the sum of its proper divisors (1).

40355683 is an equidigital number, since it uses as much as digits as its factorization.

40355683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 40355683 is about 6352.6122973152. The cubic root of 40355683 is about 343.0058818021.

The spelling of 40355683 in words is "forty million, three hundred fifty-five thousand, six hundred eighty-three".