12432272 has 20 divisors (see below), whose sum is σ = 24175536. Its totient is φ = 6193440.

The previous prime is 12432269. The next prime is 12432311. The reversal of 12432272 is 27223421.

It is a happy number.

It is a super-2 number, since 2×12432272² = 309122774163968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3647 + ... + 6177.

Almost surely, 2^12432272 is an apocalyptic number.

It is an amenable number.

12432272 is a deficient number, since it is larger than the sum of its proper divisors (11743264).

12432272 is a wasteful number, since it uses less digits than its factorization.

12432272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2840 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 12432272 is about 3525.9427108222. The cubic root of 12432272 is about 231.6595283299.

Adding to 12432272 its reverse (27223421), we get a palindrome (39655693).

The spelling of 12432272 in words is "twelve million, four hundred thirty-two thousand, two hundred seventy-two".