12620128 has 24 divisors (see below), whose sum is σ = 25454520. Its totient is φ = 6155520.

The previous prime is 12620119. The next prime is 12620141. The reversal of 12620128 is 82102621.

It is a junction number, because it is equal to n+sod(n) for n = 12620099 and 12620108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3498 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (1060605).

Almost surely, 2^12620128 is an apocalyptic number.

It is an amenable number.

12620128 is an abundant number, since it is smaller than the sum of its proper divisors (12834392).

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

12620128 is an equidigital number, since it uses as much as digits as its factorization.

12620128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670 (or 9662 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12620128 is about 3552.4819492856. The cubic root of 12620128 is about 232.8205191268.

Adding to 12620128 its reverse (82102621), we get a palindrome (94722749).

The spelling of 12620128 in words is "twelve million, six hundred twenty thousand, one hundred twenty-eight".