306047636 has 24 divisors (see below), whose sum is σ = 541072896. Its totient is φ = 151463520.

The previous prime is 306047633. The next prime is 306047647. The reversal of 306047636 is 636740603.

It is a junction number, because it is equal to n+sod(n) for n = 306047596 and 306047605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306047633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194525 + ... + 196091.

It is an arithmetic number, because the mean of its divisors is an integer number (22544704).

Almost surely, 2^306047636 is an apocalyptic number.

It is an amenable number.

306047636 is a deficient number, since it is larger than the sum of its proper divisors (235025260).

306047636 is a wasteful number, since it uses less digits than its factorization.

306047636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 306047636 is about 17494.2172159831. The cubic root of 306047636 is about 673.9013759136.

The spelling of 306047636 in words is "three hundred six million, forty-seven thousand, six hundred thirty-six".