12276648 has 24 divisors (see below), whose sum is σ = 33249450. Its totient is φ = 4092192.

The previous prime is 12276643. The next prime is 12276683. The reversal of 12276648 is 84667221.

12276648 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 6 + 648 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8749764 + 3526884 = 2958^2 + 1878^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12276648² = 301432172231808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12276643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85183 + ... + 85326.

Almost surely, 2^12276648 is an apocalyptic number.

12276648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12276648 is an abundant number, since it is smaller than the sum of its proper divisors (20972802).

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

12276648 is a wasteful number, since it uses less digits than its factorization.

12276648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170521 (or 170514 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12276648 is about 3503.8047890829. The cubic root of 12276648 is about 230.6888485171.

It can be divided in two parts, 1227 and 6648, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 12276648 in words is "twelve million, two hundred seventy-six thousand, six hundred forty-eight".