12728950 has 24 divisors (see below), whose sum is σ = 25498368. Its totient is φ = 4699680.

The previous prime is 12728939. The next prime is 12728977. The reversal of 12728950 is 5982721.

12728950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 9142 + ... + 10441.

It is an arithmetic number, because the mean of its divisors is an integer number (1062432).

Almost surely, 2^12728950 is an apocalyptic number.

12728950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12728950 is an abundant number, since it is smaller than the sum of its proper divisors (12769418).

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

12728950 is a wasteful number, since it uses less digits than its factorization.

12728950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608 (or 19603 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12728950 is about 3567.7654070861. The cubic root of 12728950 is about 233.4878002145.

The spelling of 12728950 in words is "twelve million, seven hundred twenty-eight thousand, nine hundred fifty".