12272864 has 12 divisors (see below), whose sum is σ = 24162264. Its totient is φ = 6136416.

The previous prime is 12272857. The next prime is 12272867. The reversal of 12272864 is 46827221.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 383527 = 12272864 / (1 + 2 + 2 + 7 + 2 + 8 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 12272864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191732 + ... + 191795.

It is an arithmetic number, because the mean of its divisors is an integer number (2013522).

Almost surely, 2^12272864 is an apocalyptic number.

It is an amenable number.

12272864 is a deficient number, since it is larger than the sum of its proper divisors (11889400).

12272864 is an equidigital number, since it uses as much as digits as its factorization.

12272864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383537 (or 383529 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 12272864 is about 3503.2647630460. The cubic root of 12272864 is about 230.6651445358.

The spelling of 12272864 in words is "twelve million, two hundred seventy-two thousand, eight hundred sixty-four".