1330345 has 8 divisors (see below), whose sum is σ = 1611720. Its totient is φ = 1054080.

The previous prime is 1330337. The next prime is 1330393. The reversal of 1330345 is 5430331.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 1283689 = 216^2 + 1133^2 .

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

It is not a de Polignac number, because 1330345 - 2³ = 1330337 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (201465).

2^1330345 is an apocalyptic number.

It is an amenable number.

1330345 is a deficient number, since it is larger than the sum of its proper divisors (281375).

1330345 is a wasteful number, since it uses less digits than its factorization.

1330345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 1330345 is about 1153.4058262381. The cubic root of 1330345 is about 109.9819529622.

Adding to 1330345 its reverse (5430331), we get a palindrome (6760676).

The spelling of 1330345 in words is "one million, three hundred thirty thousand, three hundred forty-five".