305000206 has 12 divisors (see below), whose sum is σ = 532194408. Its totient is φ = 130714332.

The previous prime is 305000197. The next prime is 305000207. The reversal of 305000206 is 602000503.

It is a self number, because there is not a number n which added to its sum of digits gives 305000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305000207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1556026 + ... + 1556221.

It is an arithmetic number, because the mean of its divisors is an integer number (44349534).

Almost surely, 2^305000206 is an apocalyptic number.

305000206 is a deficient number, since it is larger than the sum of its proper divisors (227194202).

305000206 is a wasteful number, since it uses less digits than its factorization.

305000206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112263 (or 3112256 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 305000206 is about 17464.2550943348. The cubic root of 305000206 is about 673.1317012731.

Adding to 305000206 its reverse (602000503), we get a palindrome (907000709).

The spelling of 305000206 in words is "three hundred five million, two hundred six", and thus it is an aban number.