1330698128 has 20 divisors (see below), whose sum is σ = 2578806300. Its totient is φ = 665199744.

The previous prime is 1330698121. The next prime is 1330698139. The reversal of 1330698128 is 8218960331.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041424 + 183656704 = 33868^2 + 13552^2 .

It is not an unprimeable number, because it can be changed into a prime (1330698121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111926 + ... + 123242.

It is an arithmetic number, because the mean of its divisors is an integer number (128940315).

Almost surely, 2^1330698128 is an apocalyptic number.

It is an amenable number.

1330698128 is a deficient number, since it is larger than the sum of its proper divisors (1248108172).

1330698128 is a wasteful number, since it uses less digits than its factorization.

1330698128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18674 (or 18668 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1330698128 is about 36478.7352850945. The cubic root of 1330698128 is about 1099.9168333817.

The spelling of 1330698128 in words is "one billion, three hundred thirty million, six hundred ninety-eight thousand, one hundred twenty-eight".