2340257 has 2 divisors, whose sum is σ = 2340258. Its totient is φ = 2340256.

The previous prime is 2340253. The next prime is 2340259. The reversal of 2340257 is 7520432.

2340257 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., 2027776 + 312481 = 1424^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340257 - 2² = 2340253 is a prime.

Together with 2340259, 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 (2340251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170128 + 1170129.

It is an arithmetic number, because the mean of its divisors is an integer number (1170129).

2^2340257 is an apocalyptic number.

It is an amenable number.

2340257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340257 is an equidigital number, since it uses as much as digits as its factorization.

2340257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2340257 is about 1529.7898548494. The cubic root of 2340257 is about 132.7662996029.

Adding to 2340257 its reverse (7520432), we get a palindrome (9860689).

The spelling of 2340257 in words is "two million, three hundred forty thousand, two hundred fifty-seven".