12273928 has 16 divisors (see below), whose sum is σ = 23329980. Its totient is φ = 6052608.

The previous prime is 12273917. The next prime is 12273929. The reversal of 12273928 is 82937221.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 1397124 = 3298^2 + 1182^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12273893 and 12273902.

It is not an unprimeable number, because it can be changed into a prime (12273929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9925 + ... + 11092.

Almost surely, 2^12273928 is an apocalyptic number.

It is an amenable number.

12273928 is a deficient number, since it is larger than the sum of its proper divisors (11056052).

12273928 is a wasteful number, since it uses less digits than its factorization.

12273928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21096 (or 21092 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 12273928 is about 3503.4166181030. The cubic root of 12273928 is about 230.6718102068.

The spelling of 12273928 in words is "twelve million, two hundred seventy-three thousand, nine hundred twenty-eight".