40263683 has 2 divisors, whose sum is σ = 40263684. Its totient is φ = 40263682.

The previous prime is 40263677. The next prime is 40263703. The reversal of 40263683 is 38636204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40263683 is a prime.

It is not a weakly prime, because it can be changed into another prime (40266683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131841 + 20131842.

It is an arithmetic number, because the mean of its divisors is an integer number (20131842).

Almost surely, 2^40263683 is an apocalyptic number.

40263683 is a deficient number, since it is larger than the sum of its proper divisors (1).

40263683 is an equidigital number, since it uses as much as digits as its factorization.

40263683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 40263683 is about 6345.3670500610. The cubic root of 40263683 is about 342.7450300516.

Adding to 40263683 its reverse (38636204), we get a palindrome (78899887).

The spelling of 40263683 in words is "forty million, two hundred sixty-three thousand, six hundred eighty-three".