240434321 has 2 divisors, whose sum is σ = 240434322. Its totient is φ = 240434320.

The previous prime is 240434279. The next prime is 240434323. The reversal of 240434321 is 123434042.

240434321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147889921 + 92544400 = 12161^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 240434321 - 2²⁶ = 173325457 is a prime.

Together with 240434323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240434323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120217160 + 120217161.

It is an arithmetic number, because the mean of its divisors is an integer number (120217161).

Almost surely, 2^240434321 is an apocalyptic number.

It is an amenable number.

240434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

240434321 is an equidigital number, since it uses as much as digits as its factorization.

240434321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 240434321 is about 15505.9446987276. The cubic root of 240434321 is about 621.8211464892.

Adding to 240434321 its reverse (123434042), we get a palindrome (363868363).

The spelling of 240434321 in words is "two hundred forty million, four hundred thirty-four thousand, three hundred twenty-one".