240504317 has 2 divisors, whose sum is σ = 240504318. Its totient is φ = 240504316.

The previous prime is 240504283. The next prime is 240504343. The reversal of 240504317 is 713405042.

It is an a-pointer prime, because the next prime (240504343) can be obtained adding 240504317 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228191236 + 12313081 = 15106^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 240504317 - 2¹⁸ = 240242173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240504347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120252158 + 120252159.

It is an arithmetic number, because the mean of its divisors is an integer number (120252159).

Almost surely, 2^240504317 is an apocalyptic number.

It is an amenable number.

240504317 is a deficient number, since it is larger than the sum of its proper divisors (1).

240504317 is an equidigital number, since it uses as much as digits as its factorization.

240504317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 240504317 is about 15508.2016043125. The cubic root of 240504317 is about 621.8814828142.

Adding to 240504317 its reverse (713405042), we get a palindrome (953909359).

The spelling of 240504317 in words is "two hundred forty million, five hundred four thousand, three hundred seventeen".