12538628 has 24 divisors (see below), whose sum is σ = 22619520. Its totient is φ = 6078240.

The previous prime is 12538619. The next prime is 12538633. The reversal of 12538628 is 82683521.

12538628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 46133 + ... + 46403.

It is an arithmetic number, because the mean of its divisors is an integer number (942480).

Almost surely, 2^12538628 is an apocalyptic number.

It is an amenable number.

12538628 is a deficient number, since it is larger than the sum of its proper divisors (10080892).

12538628 is a wasteful number, since it uses less digits than its factorization.

12538628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 12538628 is about 3540.9925162304. The cubic root of 12538628 is about 232.3182562425.

The spelling of 12538628 in words is "twelve million, five hundred thirty-eight thousand, six hundred twenty-eight".