12638652 has 24 divisors (see below), whose sum is σ = 31759056. Its totient is φ = 3888768.

The previous prime is 12638621. The next prime is 12638663. The reversal of 12638652 is 25683621.

12638652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40353 + ... + 40664.

It is an arithmetic number, because the mean of its divisors is an integer number (1323294).

Almost surely, 2^12638652 is an apocalyptic number.

12638652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12638652 is an abundant number, since it is smaller than the sum of its proper divisors (19120404).

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

12638652 is a wasteful number, since it uses less digits than its factorization.

12638652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81037 (or 81035 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 12638652 is about 3555.0881845603. The cubic root of 12638652 is about 232.9343758405.

The spelling of 12638652 in words is "twelve million, six hundred thirty-eight thousand, six hundred fifty-two".