1330404256 has 12 divisors (see below), whose sum is σ = 2619233442. Its totient is φ = 665202112.

The previous prime is 1330404253. The next prime is 1330404269. The reversal of 1330404256 is 6524040331.

It can be written as a sum of positive squares in only one way, i.e., 1277347600 + 53056656 = 35740^2 + 7284^2 .

It is not an unprimeable number, because it can be changed into a prime (1330404253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20787535 + ... + 20787598.

Almost surely, 2^1330404256 is an apocalyptic number.

1330404256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1330404256 is a deficient number, since it is larger than the sum of its proper divisors (1288829186).

1330404256 is an equidigital number, since it uses as much as digits as its factorization.

1330404256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41575143 (or 41575135 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1330404256 is about 36474.7070721617. The cubic root of 1330404256 is about 1099.8358587038.

Adding to 1330404256 its reverse (6524040331), we get a palindrome (7854444587).

The spelling of 1330404256 in words is "one billion, three hundred thirty million, four hundred four thousand, two hundred fifty-six".