40405340033 has 2 divisors, whose sum is σ = 40405340034. Its totient is φ = 40405340032.

The previous prime is 40405340021. The next prime is 40405340047. The reversal of 40405340033 is 33004350404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39677851249 + 727488784 = 199193^2 + 26972^2 .

It is a cyclic number.

It is not a de Polignac number, because 40405340033 - 2⁶ = 40405339969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40405339984 and 40405340011.

It is not a weakly prime, because it can be changed into another prime (40405340233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20202670016 + 20202670017.

It is an arithmetic number, because the mean of its divisors is an integer number (20202670017).

Almost surely, 2^40405340033 is an apocalyptic number.

It is an amenable number.

40405340033 is a deficient number, since it is larger than the sum of its proper divisors (1).

40405340033 is an equidigital number, since it uses as much as digits as its factorization.

40405340033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 40405340033 its reverse (33004350404), we get a palindrome (73409690437).

The spelling of 40405340033 in words is "forty billion, four hundred five million, three hundred forty thousand, thirty-three".