12638230 has 32 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 4353120.

The previous prime is 12638207. The next prime is 12638233. The reversal of 12638230 is 3283621.

It is a junction number, because it is equal to n+sod(n) for n = 12638195 and 12638204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^12638230 is an apocalyptic number.

12638230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12638230 is an abundant number, since it is smaller than the sum of its proper divisors (13489130).

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

12638230 is a wasteful number, since it uses less digits than its factorization.

12638230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12638230 is about 3555.0288325132. The cubic root of 12638230 is about 232.9317832803.

The spelling of 12638230 in words is "twelve million, six hundred thirty-eight thousand, two hundred thirty".