12406500 has 96 divisors (see below), whose sum is σ = 40185600. Its totient is φ = 3304800.

The previous prime is 12406483. The next prime is 12406501. The reversal of 12406500 is 560421.

It is a happy number.

12406500 is a `hidden beast` number, since 12 + 4 + 0 + 650 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13041 + ... + 13959.

It is an arithmetic number, because the mean of its divisors is an integer number (418600).

Almost surely, 2^12406500 is an apocalyptic number.

12406500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12406500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20092800).

12406500 is an abundant number, since it is smaller than the sum of its proper divisors (27779100).

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

12406500 is a wasteful number, since it uses less digits than its factorization.

12406500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12406500 is about 3522.2861893946. The cubic root of 12406500 is about 231.4993414763.

Adding to 12406500 its reverse (560421), we get a palindrome (12966921).

The spelling of 12406500 in words is "twelve million, four hundred six thousand, five hundred".