1330020009 has 6 divisors (see below), whose sum is σ = 1921140026. Its totient is φ = 886680000.

The previous prime is 1330019989. The next prime is 1330020017. The reversal of 1330020009 is 9000200331.

It can be written as a sum of positive squares in only one way, i.e., 904505625 + 425514384 = 30075^2 + 20628^2 .

It is not a de Polignac number, because 1330020009 - 2¹¹ = 1330017961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330019973 and 1330020000.

It is not an unprimeable number, because it can be changed into a prime (1330020049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73889992 + ... + 73890009.

Almost surely, 2^1330020009 is an apocalyptic number.

It is an amenable number.

1330020009 is a deficient number, since it is larger than the sum of its proper divisors (591120017).

1330020009 is a wasteful number, since it uses less digits than its factorization.

1330020009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147780007 (or 147780004 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1330020009 is about 36469.4393842296. The cubic root of 1330020009 is about 1099.7299637424.

The spelling of 1330020009 in words is "one billion, three hundred thirty million, twenty thousand, nine".