20300228 has 12 divisors (see below), whose sum is σ = 38258220. Its totient is φ = 9369312.

The previous prime is 20300201. The next prime is 20300233. The reversal of 20300228 is 82200302.

It can be written as a sum of positive squares in 2 ways, for example, as 1098304 + 19201924 = 1048^2 + 4382^2 .

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 3 ways as a sum of consecutive naturals, for example, 195143 + ... + 195246.

It is an arithmetic number, because the mean of its divisors is an integer number (3188185).

Almost surely, 2^20300228 is an apocalyptic number.

It is an amenable number.

20300228 is a deficient number, since it is larger than the sum of its proper divisors (17957992).

20300228 is a wasteful number, since it uses less digits than its factorization.

20300228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390406 (or 390404 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20300228 is about 4505.5774324719. The cubic root of 20300228 is about 272.7932617021.

The spelling of 20300228 in words is "twenty million, three hundred thousand, two hundred twenty-eight".