1325271328 has 48 divisors (see below), whose sum is σ = 2766161664. Its totient is φ = 623911680.

The previous prime is 1325271317. The next prime is 1325271341. The reversal of 1325271328 is 8231725231.

It is a junction number, because it is equal to n+sod(n) for n = 1325271293 and 1325271302.

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, 18651 + ... + 54757.

It is an arithmetic number, because the mean of its divisors is an integer number (57628368).

Almost surely, 2^1325271328 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 1325271328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383080832).

1325271328 is an abundant number, since it is smaller than the sum of its proper divisors (1440890336).

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

1325271328 is a wasteful number, since it uses less digits than its factorization.

1325271328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36185 (or 36177 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 1325271328 is about 36404.2762323329. The cubic root of 1325271328 is about 1098.4195838809.

Adding to 1325271328 its reverse (8231725231), we get a palindrome (9556996559).

The spelling of 1325271328 in words is "one billion, three hundred twenty-five million, two hundred seventy-one thousand, three hundred twenty-eight".