12338530 has 16 divisors (see below), whose sum is σ = 22257144. Its totient is φ = 4924800.

The previous prime is 12338509. The next prime is 12338539. The reversal of 12338530 is 3583321.

It can be written as a sum of positive squares in 4 ways, for example, as 11471769 + 866761 = 3387^2 + 931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12338495 and 12338504.

It is not an unprimeable number, because it can be changed into a prime (12338539) 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 7 ways as a sum of consecutive naturals, for example, 4984 + ... + 7036.

Almost surely, 2^12338530 is an apocalyptic number.

12338530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12338530 is a deficient number, since it is larger than the sum of its proper divisors (9918614).

12338530 is a wasteful number, since it uses less digits than its factorization.

12338530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12338530 is about 3512.6243750222. The cubic root of 12338530 is about 231.0758045349.

The spelling of 12338530 in words is "twelve million, three hundred thirty-eight thousand, five hundred thirty".