1330306 has 4 divisors (see below), whose sum is σ = 1995462. Its totient is φ = 665152.

The previous prime is 1330253. The next prime is 1330309. The reversal of 1330306 is 6030331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1071225 + 259081 = 1035^2 + 509^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1330306.

It is not an unprimeable number, because it can be changed into a prime (1330309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332575 + ... + 332578.

2^1330306 is an apocalyptic number.

1330306 is a deficient number, since it is larger than the sum of its proper divisors (665156).

1330306 is an equidigital number, since it uses as much as digits as its factorization.

1330306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665155.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1330306 is about 1153.3889196624. The cubic root of 1330306 is about 109.9808782189.

Adding to 1330306 its reverse (6030331), we get a palindrome (7360637).

The spelling of 1330306 in words is "one million, three hundred thirty thousand, three hundred six".