240400033 has 2 divisors, whose sum is σ = 240400034. Its totient is φ = 240400032.

The previous prime is 240400001. The next prime is 240400051. The reversal of 240400033 is 330004042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143712144 + 96687889 = 11988^2 + 9833^2 .

It is a cyclic number.

It is not a de Polignac number, because 240400033 - 2⁵ = 240400001 is a prime.

It is not a weakly prime, because it can be changed into another prime (240401033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120200016 + 120200017.

It is an arithmetic number, because the mean of its divisors is an integer number (120200017).

Almost surely, 2^240400033 is an apocalyptic number.

It is an amenable number.

240400033 is a deficient number, since it is larger than the sum of its proper divisors (1).

240400033 is an equidigital number, since it uses as much as digits as its factorization.

240400033 is an odious number, because the sum of its binary digits is odd.

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

The square root of 240400033 is about 15504.8390188354. The cubic root of 240400033 is about 621.7915860713.

Adding to 240400033 its reverse (330004042), we get a palindrome (570404075).

The spelling of 240400033 in words is "two hundred forty million, four hundred thousand, thirty-three".