1317408846 has 64 divisors (see below), whose sum is σ = 3028451328. Its totient is φ = 378459648.

The previous prime is 1317408793. The next prime is 1317408847. The reversal of 1317408846 is 6488047131.

It is a junction number, because it is equal to n+sod(n) for n = 1317408798 and 1317408807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317408847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164491 + ... + 172313.

It is an arithmetic number, because the mean of its divisors is an integer number (47319552).

Almost surely, 2^1317408846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317408846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514225664).

1317408846 is an abundant number, since it is smaller than the sum of its proper divisors (1711042482).

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

1317408846 is a wasteful number, since it uses less digits than its factorization.

1317408846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 1317408846 is about 36296.1271487744. The cubic root of 1317408846 is about 1096.2430636208.

The spelling of 1317408846 in words is "one billion, three hundred seventeen million, four hundred eight thousand, eight hundred forty-six".