12978230 has 16 divisors (see below), whose sum is σ = 23757840. Its totient is φ = 5103072.

The previous prime is 12978227. The next prime is 12978239. The reversal of 12978230 is 3287921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12978239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10409 + ... + 11588.

It is an arithmetic number, because the mean of its divisors is an integer number (1484865).

Almost surely, 2^12978230 is an apocalyptic number.

12978230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12978230 is a deficient number, since it is larger than the sum of its proper divisors (10779610).

12978230 is a wasteful number, since it uses less digits than its factorization.

12978230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22063.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 12978230 is about 3602.5310546892. The cubic root of 12978230 is about 235.0021427298.

The spelling of 12978230 in words is "twelve million, nine hundred seventy-eight thousand, two hundred thirty".