1330404401 has 4 divisors (see below), whose sum is σ = 1373320704. Its totient is φ = 1287488100.

The previous prime is 1330404379. The next prime is 1330404409. The reversal of 1330404401 is 1044040331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1330404401 - 2⁶ = 1330404337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1330404409) 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, 21458105 + ... + 21458166.

It is an arithmetic number, because the mean of its divisors is an integer number (343330176).

Almost surely, 2^1330404401 is an apocalyptic number.

It is an amenable number.

1330404401 is a deficient number, since it is larger than the sum of its proper divisors (42916303).

1330404401 is an equidigital number, since it uses as much as digits as its factorization.

1330404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42916302.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1330404401 is about 36474.7090598404. The cubic root of 1330404401 is about 1099.8358986606.

Adding to 1330404401 its reverse (1044040331), we get a palindrome (2374444732).

The spelling of 1330404401 in words is "one billion, three hundred thirty million, four hundred four thousand, four hundred one".