1317194368 has 64 divisors (see below), whose sum is σ = 3026707200. Its totient is φ = 559291392.

The previous prime is 1317194363. The next prime is 1317194381. The reversal of 1317194368 is 8634917131.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1317194363) 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 in 7 ways as a sum of consecutive naturals, for example, 90921 + ... + 104407.

It is an arithmetic number, because the mean of its divisors is an integer number (47292300).

Almost surely, 2^1317194368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317194368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513353600).

1317194368 is an abundant number, since it is smaller than the sum of its proper divisors (1709512832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317194368 is a wasteful number, since it uses less digits than its factorization.

1317194368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13617 (or 13605 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 1317194368 is about 36293.1724708656. The cubic root of 1317194368 is about 1096.1835698701.

The spelling of 1317194368 in words is "one billion, three hundred seventeen million, one hundred ninety-four thousand, three hundred sixty-eight".