1330404399 has 16 divisors (see below), whose sum is σ = 1974188640. Its totient is φ = 885487680.

The previous prime is 1330404379. The next prime is 1330404409. The reversal of 1330404399 is 9934040331.

It is not a de Polignac number, because 1330404399 - 2⁹ = 1330403887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330404379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23272 + ... + 56589.

It is an arithmetic number, because the mean of its divisors is an integer number (123386790).

Almost surely, 2^1330404399 is an apocalyptic number.

1330404399 is a deficient number, since it is larger than the sum of its proper divisors (643784241).

1330404399 is an equidigital number, since it uses as much as digits as its factorization.

1330404399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80487 (or 80481 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 1330404399 is about 36474.7090324241. The cubic root of 1330404399 is about 1099.8358981094.

The spelling of 1330404399 in words is "one billion, three hundred thirty million, four hundred four thousand, three hundred ninety-nine".