1330247128 has 32 divisors (see below), whose sum is σ = 2852179200. Its totient is φ = 569776032.

The previous prime is 1330247123. The next prime is 1330247129. The reversal of 1330247128 is 8217420331.

It is a self number, because there is not a number n which added to its sum of digits gives 1330247128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330247123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107653 + ... + 119371.

It is an arithmetic number, because the mean of its divisors is an integer number (89130600).

Almost surely, 2^1330247128 is an apocalyptic number.

It is an amenable number.

1330247128 is an abundant number, since it is smaller than the sum of its proper divisors (1521932072).

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

1330247128 is a wasteful number, since it uses less digits than its factorization.

1330247128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13759 (or 13755 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1330247128 is about 36472.5530776226. The cubic root of 1330247128 is about 1099.7925581275.

Adding to 1330247128 its reverse (8217420331), we get a palindrome (9547667459).

The spelling of 1330247128 in words is "one billion, three hundred thirty million, two hundred forty-seven thousand, one hundred twenty-eight".