12630436 has 36 divisors (see below), whose sum is σ = 27695388. Its totient is φ = 4995648.

The previous prime is 12630407. The next prime is 12630461. The reversal of 12630436 is 63403621.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 6350400 = 2506^2 + 2520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12630436.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70 + ... + 5026.

Almost surely, 2^12630436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12630436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13847694).

12630436 is an abundant number, since it is smaller than the sum of its proper divisors (15064952).

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

12630436 is a wasteful number, since it uses less digits than its factorization.

12630436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 12630436 is about 3553.9324698142. The cubic root of 12630436 is about 232.8838904016.

The spelling of 12630436 in words is "twelve million, six hundred thirty thousand, four hundred thirty-six".