12205928 has 32 divisors (see below), whose sum is σ = 26304960. Its totient is φ = 5201280.

The previous prime is 12205903. The next prime is 12205933. The reversal of 12205928 is 82950221.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12205928.

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, 11300 + ... + 12332.

It is an arithmetic number, because the mean of its divisors is an integer number (822030).

Almost surely, 2^12205928 is an apocalyptic number.

It is an amenable number.

12205928 is an abundant number, since it is smaller than the sum of its proper divisors (14099032).

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

12205928 is a wasteful number, since it uses less digits than its factorization.

12205928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12205928 is about 3493.6983269882. The cubic root of 12205928 is about 230.2450318668.

The spelling of 12205928 in words is "twelve million, two hundred five thousand, nine hundred twenty-eight".