12408272 has 10 divisors (see below), whose sum is σ = 24041058. Its totient is φ = 6204128.

The previous prime is 12408271. The next prime is 12408301. The reversal of 12408272 is 27280421.

It can be written as a sum of positive squares in only one way, i.e., 11806096 + 602176 = 3436^2 + 776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408271) 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 as a sum of consecutive naturals, namely, 387743 + ... + 387774.

Almost surely, 2^12408272 is an apocalyptic number.

It is an amenable number.

12408272 is a deficient number, since it is larger than the sum of its proper divisors (11632786).

12408272 is an equidigital number, since it uses as much as digits as its factorization.

12408272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775525 (or 775519 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12408272 is about 3522.5377215865. The cubic root of 12408272 is about 231.5103625084.

Adding to 12408272 its reverse (27280421), we get a palindrome (39688693).

The spelling of 12408272 in words is "twelve million, four hundred eight thousand, two hundred seventy-two".