20304200 has 48 divisors (see below), whose sum is σ = 53954880. Its totient is φ = 6960960.

The previous prime is 20304197. The next prime is 20304209. The reversal of 20304200 is 240302.

It is not an unprimeable number, because it can be changed into a prime (20304209) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5852 + ... + 8651.

It is an arithmetic number, because the mean of its divisors is an integer number (1124060).

Almost surely, 2^20304200 is an apocalyptic number.

20304200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20304200 is an abundant number, since it is smaller than the sum of its proper divisors (33650680).

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

20304200 is a wasteful number, since it uses less digits than its factorization.

20304200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526 (or 14517 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20304200 is about 4506.0181979215. The cubic root of 20304200 is about 272.8110523754.

Adding to 20304200 its reverse (240302), we get a palindrome (20544502).

The spelling of 20304200 in words is "twenty million, three hundred four thousand, two hundred".