12406472 has 16 divisors (see below), whose sum is σ = 25051740. Its totient is φ = 5726016.

The previous prime is 12406463. The next prime is 12406483. The reversal of 12406472 is 27460421.

It can be written as a sum of positive squares in 2 ways, for example, as 10407076 + 1999396 = 3226^2 + 1414^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 59543 + ... + 59750.

Almost surely, 2^12406472 is an apocalyptic number.

It is an amenable number.

12406472 is an abundant number, since it is smaller than the sum of its proper divisors (12645268).

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

12406472 is a wasteful number, since it uses less digits than its factorization.

12406472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119312 (or 119308 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 12406472 is about 3522.2822147011. The cubic root of 12406472 is about 231.4991673206.

Adding to 12406472 its reverse (27460421), we get a palindrome (39866893).

The spelling of 12406472 in words is "twelve million, four hundred six thousand, four hundred seventy-two".