1530306 has 32 divisors (see below), whose sum is σ = 3602880. Its totient is φ = 479808.

The previous prime is 1530293. The next prime is 1530311. The reversal of 1530306 is 6030351.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (112590).

2^1530306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801440).

1530306 is an abundant number, since it is smaller than the sum of its proper divisors (2072574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1530306 is a wasteful number, since it uses less digits than its factorization.

1530306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 1530306 is about 1237.0553746700. The cubic root of 1530306 is about 115.2372167081.

Adding to 1530306 its reverse (6030351), we get a palindrome (7560657).

The spelling of 1530306 in words is "one million, five hundred thirty thousand, three hundred six".