12272456 has 32 divisors (see below), whose sum is σ = 27013440. Its totient is φ = 5116608.

The previous prime is 12272441. The next prime is 12272483. The reversal of 12272456 is 65427221.

It is a happy number.

It is a super-2 number, since 2×12272456² = 301226352543872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 890 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (844170).

Almost surely, 2^12272456 is an apocalyptic number.

It is an amenable number.

12272456 is an abundant number, since it is smaller than the sum of its proper divisors (14740984).

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

12272456 is a wasteful number, since it uses less digits than its factorization.

12272456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973 (or 5969 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 12272456 is about 3503.2065311654. The cubic root of 12272456 is about 230.6625884244.

Adding to 12272456 its reverse (65427221), we get a palindrome (77699677).

The spelling of 12272456 in words is "twelve million, two hundred seventy-two thousand, four hundred fifty-six".