1325334320 has 60 divisors (see below), whose sum is σ = 3184193520. Its totient is φ = 513002880.

The previous prime is 1325334299. The next prime is 1325334323. The reversal of 1325334320 is 234335231.

It is a happy number.

It is a super-2 number, since 2×1325334320² = 3513022119539724800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1325334320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325334323) 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, 68261 + ... + 85499.

It is an arithmetic number, because the mean of its divisors is an integer number (53069892).

Almost surely, 2^1325334320 is an apocalyptic number.

1325334320 is a gapful number since it is divisible by the number (10) 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 1325334320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592096760).

1325334320 is an abundant number, since it is smaller than the sum of its proper divisors (1858859200).

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

1325334320 is a wasteful number, since it uses less digits than its factorization.

1325334320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17314 (or 17277 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 1325334320 is about 36405.1413951381. The cubic root of 1325334320 is about 1098.4369867449.

Adding to 1325334320 its reverse (234335231), we get a palindrome (1559669551).

The spelling of 1325334320 in words is "one billion, three hundred twenty-five million, three hundred thirty-four thousand, three hundred twenty".