12820300 has 18 divisors (see below), whose sum is σ = 27820268. Its totient is φ = 5128080.

The previous prime is 12820289. The next prime is 12820303. The reversal of 12820300 is 302821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12820303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64002 + ... + 64201.

Almost surely, 2^12820300 is an apocalyptic number.

12820300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12820300 is an abundant number, since it is smaller than the sum of its proper divisors (14999968).

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

12820300 is a wasteful number, since it uses less digits than its factorization.

12820300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128217 (or 128210 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12820300 is about 3580.5446513066. The cubic root of 12820300 is about 234.0450153249.

The spelling of 12820300 in words is "twelve million, eight hundred twenty thousand, three hundred".