40240033 has 2 divisors, whose sum is σ = 40240034. Its totient is φ = 40240032.

The previous prime is 40240027. The next prime is 40240093. The reversal of 40240033 is 33004204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20277009 + 19963024 = 4503^2 + 4468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40240033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40239989 and 40240016.

It is not a weakly prime, because it can be changed into another prime (40240093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120016 + 20120017.

It is an arithmetic number, because the mean of its divisors is an integer number (20120017).

Almost surely, 2^40240033 is an apocalyptic number.

It is an amenable number.

40240033 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240033 is an equidigital number, since it uses as much as digits as its factorization.

40240033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40240033 is about 6343.5032119484. The cubic root of 40240033 is about 342.6779099494.

Adding to 40240033 its reverse (33004204), we get a palindrome (73244237).

The spelling of 40240033 in words is "forty million, two hundred forty thousand, thirty-three".