1217340368 has 10 divisors (see below), whose sum is σ = 2358596994. Its totient is φ = 608670176.

The previous prime is 1217340361. The next prime is 1217340379. The reversal of 1217340368 is 8630437121.

It can be written as a sum of positive squares in only one way, i.e., 1209091984 + 8248384 = 34772^2 + 2872^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217340361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38041871 + ... + 38041902.

Almost surely, 2^1217340368 is an apocalyptic number.

It is an amenable number.

1217340368 is a deficient number, since it is larger than the sum of its proper divisors (1141256626).

1217340368 is an equidigital number, since it uses as much as digits as its factorization.

1217340368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76083781 (or 76083775 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1217340368 is about 34890.4050993966. The cubic root of 1217340368 is about 1067.7526909402.

Adding to 1217340368 its reverse (8630437121), we get a palindrome (9847777489).

The spelling of 1217340368 in words is "one billion, two hundred seventeen million, three hundred forty thousand, three hundred sixty-eight".