1318326528 has 72 divisors (see below), whose sum is σ = 3514519008. Its totient is φ = 438710272.

The previous prime is 1318326517. The next prime is 1318326577. The reversal of 1318326528 is 8256238131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657175 + ... + 659177.

It is an arithmetic number, because the mean of its divisors is an integer number (48812764).

Almost surely, 2^1318326528 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 1318326528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757259504).

1318326528 is an abundant number, since it is smaller than the sum of its proper divisors (2196192480).

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

1318326528 is an equidigital number, since it uses as much as digits as its factorization.

1318326528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2865 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 1318326528 is about 36308.7665447341. The cubic root of 1318326528 is about 1096.4975452453.

The spelling of 1318326528 in words is "one billion, three hundred eighteen million, three hundred twenty-six thousand, five hundred twenty-eight".