1317994496 has 204 divisors, whose sum is σ = 3453982992. Its totient is φ = 490733568.

The previous prime is 1317994493. The next prime is 1317994499. The reversal of 1317994496 is 6944997131.

It is an interprime number because it is at equal distance from previous prime (1317994493) and next prime (1317994499).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317994493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77529080 + ... + 77529096.

Almost surely, 2^1317994496 is an apocalyptic number.

1317994496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317994496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726991496).

1317994496 is an abundant number, since it is smaller than the sum of its proper divisors (2135988496).

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

1317994496 is an frugal number, since it uses more digits than its factorization.

1317994496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 39 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 53.

The square root of 1317994496 is about 36304.1939175077. The cubic root of 1317994496 is about 1096.4054833688.

The spelling of 1317994496 in words is "one billion, three hundred seventeen million, nine hundred ninety-four thousand, four hundred ninety-six".