1330444345 has 8 divisors (see below), whose sum is σ = 1618403976. Its totient is φ = 1049774976.

The previous prime is 1330444331. The next prime is 1330444351. The reversal of 1330444345 is 5434440331.

It can be written as a sum of positive squares in 4 ways, for example, as 28100601 + 1302343744 = 5301^2 + 36088^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1330444345 - 2²⁷ = 1196226617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1822162 + ... + 1822891.

It is an arithmetic number, because the mean of its divisors is an integer number (202300497).

Almost surely, 2^1330444345 is an apocalyptic number.

It is an amenable number.

1330444345 is a deficient number, since it is larger than the sum of its proper divisors (287959631).

1330444345 is an equidigital number, since it uses as much as digits as its factorization.

1330444345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645131.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 1330444345 is about 36475.2566132166. The cubic root of 1330444345 is about 1099.8469056911.

Adding to 1330444345 its reverse (5434440331), we get a palindrome (6764884676).

The spelling of 1330444345 in words is "one billion, three hundred thirty million, four hundred forty-four thousand, three hundred forty-five".