240243433 has 2 divisors, whose sum is σ = 240243434. Its totient is φ = 240243432.

The previous prime is 240243427. The next prime is 240243449. The reversal of 240243433 is 334342042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136142224 + 104101209 = 11668^2 + 10203^2 .

It is a cyclic number.

It is not a de Polignac number, because 240243433 - 2⁵ = 240243401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240243398 and 240243407.

It is not a weakly prime, because it can be changed into another prime (240243403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120121716 + 120121717.

It is an arithmetic number, because the mean of its divisors is an integer number (120121717).

Almost surely, 2^240243433 is an apocalyptic number.

It is an amenable number.

240243433 is a deficient number, since it is larger than the sum of its proper divisors (1).

240243433 is an equidigital number, since it uses as much as digits as its factorization.

240243433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 240243433 is about 15499.7881598427. The cubic root of 240243433 is about 621.6565421168.

Adding to 240243433 its reverse (334342042), we get a palindrome (574585475).

The spelling of 240243433 in words is "two hundred forty million, two hundred forty-three thousand, four hundred thirty-three".