1330406405 has 8 divisors (see below), whose sum is σ = 1596806784. Its totient is φ = 1064112400.

The previous prime is 1330406381. The next prime is 1330406453. The reversal of 1330406405 is 5046040331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1330406405 - 2²² = 1326212101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160 + ... + 51750.

It is an arithmetic number, because the mean of its divisors is an integer number (199600848).

Almost surely, 2^1330406405 is an apocalyptic number.

It is an amenable number.

1330406405 is a deficient number, since it is larger than the sum of its proper divisors (266400379).

1330406405 is an equidigital number, since it uses as much as digits as its factorization.

1330406405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53187.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1330406405 is about 36474.7365309196. The cubic root of 1330406405 is about 1099.8364508912.

Adding to 1330406405 its reverse (5046040331), we get a palindrome (6376446736).

The spelling of 1330406405 in words is "one billion, three hundred thirty million, four hundred six thousand, four hundred five".