12630538 has 8 divisors (see below), whose sum is σ = 19256580. Its totient is φ = 6211680.

The previous prime is 12630529. The next prime is 12630539. The reversal of 12630538 is 83503621.

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 4028049 = 2933^2 + 2007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12630539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51643 + ... + 51886.

Almost surely, 2^12630538 is an apocalyptic number.

12630538 is a deficient number, since it is larger than the sum of its proper divisors (6626042).

12630538 is a wasteful number, since it uses less digits than its factorization.

12630538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103592.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12630538 is about 3553.9468200861. The cubic root of 12630538 is about 232.8845173025.

The spelling of 12630538 in words is "twelve million, six hundred thirty thousand, five hundred thirty-eight".