12630918 has 16 divisors (see below), whose sum is σ = 25298496. Its totient is φ = 4204200.

The previous prime is 12630913. The next prime is 12630941. The reversal of 12630918 is 81903621.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12630913) 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, 5305 + ... + 7307.

It is an arithmetic number, because the mean of its divisors is an integer number (1581156).

Almost surely, 2^12630918 is an apocalyptic number.

12630918 is an abundant number, since it is smaller than the sum of its proper divisors (12667578).

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

12630918 is a wasteful number, since it uses less digits than its factorization.

12630918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12630918 is about 3554.0002813731. Note that the first 3 decimals coincide. The cubic root of 12630918 is about 232.8868527857.

The spelling of 12630918 in words is "twelve million, six hundred thirty thousand, nine hundred eighteen".