40235683 has 2 divisors, whose sum is σ = 40235684. Its totient is φ = 40235682.

The previous prime is 40235681. The next prime is 40235693. The reversal of 40235683 is 38653204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40235683 - 2¹ = 40235681 is a prime.

Together with 40235681, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40235681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117841 + 20117842.

It is an arithmetic number, because the mean of its divisors is an integer number (20117842).

Almost surely, 2^40235683 is an apocalyptic number.

40235683 is a deficient number, since it is larger than the sum of its proper divisors (1).

40235683 is an equidigital number, since it uses as much as digits as its factorization.

40235683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40235683 is about 6343.1603322003. The cubic root of 40235683 is about 342.6655615282.

Adding to 40235683 its reverse (38653204), we get a palindrome (78888887).

The spelling of 40235683 in words is "forty million, two hundred thirty-five thousand, six hundred eighty-three".