306236 has 12 divisors (see below), whose sum is σ = 612528. Its totient is φ = 131232.

The previous prime is 306209. The next prime is 306239. The reversal of 306236 is 632603.

It is a happy number.

306236 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306236.

It is not an unprimeable number, because it can be changed into a prime (306239) by changing a digit.

306236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5441 + ... + 5496.

It is an arithmetic number, because the mean of its divisors is an integer number (51044).

2³⁰⁶²³⁶ is an apocalyptic number.

It is an amenable number.

306236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

306236 is a wasteful number, since it uses less digits than its factorization.

306236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10948 (or 10946 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 306236 is about 553.3859412743. The cubic root of 306236 is about 67.4039603551.

Adding to 306236 its reverse (632603), we get a palindrome (938839).

The spelling of 306236 in words is "three hundred six thousand, two hundred thirty-six".