12256472 has 32 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 5829120.

The previous prime is 12256471. The next prime is 12256477. The reversal of 12256472 is 27465221.

It is a happy number.

It is a super-2 number, since 2×12256472² = 300442211773568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256471) 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 in 7 ways as a sum of consecutive naturals, for example, 13472 + ... + 14352.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^12256472 is an apocalyptic number.

It is an amenable number.

12256472 is a deficient number, since it is larger than the sum of its proper divisors (11875048).

12256472 is a wasteful number, since it uses less digits than its factorization.

12256472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 967 counting only the distinct ones).

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

The square root of 12256472 is about 3500.9244493419. The cubic root of 12256472 is about 230.5624043857.

The spelling of 12256472 in words is "twelve million, two hundred fifty-six thousand, four hundred seventy-two".