12978200 has 24 divisors (see below), whose sum is σ = 30174780. Its totient is φ = 5191200.

The previous prime is 12978169. The next prime is 12978211. The reversal of 12978200 is 287921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32246 + ... + 32645.

Almost surely, 2^12978200 is an apocalyptic number.

12978200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12978200 is an abundant number, since it is smaller than the sum of its proper divisors (17196580).

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

12978200 is a wasteful number, since it uses less digits than its factorization.

12978200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64907 (or 64898 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12978200 is about 3602.5268909475. The cubic root of 12978200 is about 235.0019616556.

The spelling of 12978200 in words is "twelve million, nine hundred seventy-eight thousand, two hundred".