240342331 has 2 divisors, whose sum is σ = 240342332. Its totient is φ = 240342330.

The previous prime is 240342329. The next prime is 240342337. The reversal of 240342331 is 133243042.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240342331 - 2¹ = 240342329 is a prime.

It is a super-2 number, since 2×240342331² = 115528872141027122, which contains 22 as substring.

Together with 240342329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (240342337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120171165 + 120171166.

It is an arithmetic number, because the mean of its divisors is an integer number (120171166).

Almost surely, 2^240342331 is an apocalyptic number.

240342331 is a deficient number, since it is larger than the sum of its proper divisors (1).

240342331 is an equidigital number, since it uses as much as digits as its factorization.

240342331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 240342331 is about 15502.9781332491. The cubic root of 240342331 is about 621.7418335974.

Adding to 240342331 its reverse (133243042), we get a palindrome (373585373).

The spelling of 240342331 in words is "two hundred forty million, three hundred forty-two thousand, three hundred thirty-one".