1330404409 has 2 divisors, whose sum is σ = 1330404410. Its totient is φ = 1330404408.

The previous prime is 1330404379. The next prime is 1330404431. The reversal of 1330404409 is 9044040331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1326416400 + 3988009 = 36420^2 + 1997^2 .

It is an emirp because it is prime and its reverse (9044040331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1330404409 - 2⁷ = 1330404281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330404209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665202204 + 665202205.

It is an arithmetic number, because the mean of its divisors is an integer number (665202205).

Almost surely, 2^1330404409 is an apocalyptic number.

It is an amenable number.

1330404409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330404409 is an equidigital number, since it uses as much as digits as its factorization.

1330404409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1330404409 is about 36474.7091695054. The cubic root of 1330404409 is about 1099.8359008651.

The spelling of 1330404409 in words is "one billion, three hundred thirty million, four hundred four thousand, four hundred nine".