1230306 has 32 divisors (see below), whose sum is σ = 3068928. Its totient is φ = 319440.

The previous prime is 1230301. The next prime is 1230311. The reversal of 1230306 is 6030321.

It is an interprime number because it is at equal distance from previous prime (1230301) and next prime (1230311).

It is not an unprimeable number, because it can be changed into a prime (1230301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (95904).

2^1230306 is an apocalyptic number.

1230306 is an abundant number, since it is smaller than the sum of its proper divisors (1838622).

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

1230306 is a wasteful number, since it uses less digits than its factorization.

1230306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230306 is about 1109.1915975160. The cubic root of 1230306 is about 107.1530113551.

Adding to 1230306 its sum of digits (15), we get a palindrome (1230321).

Adding to 1230306 its reverse (6030321), we get a palindrome (7260627).

The spelling of 1230306 in words is "one million, two hundred thirty thousand, three hundred six".