12400324 has 12 divisors (see below), whose sum is σ = 22056748. Its totient is φ = 6098400.

The previous prime is 12400309. The next prime is 12400343. The reversal of 12400324 is 42300421.

It can be written as a sum of positive squares in 2 ways, for example, as 6553600 + 5846724 = 2560^2 + 2418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12400298 and 12400307.

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, 25167 + ... + 25654.

Almost surely, 2^12400324 is an apocalyptic number.

It is an amenable number.

12400324 is a deficient number, since it is larger than the sum of its proper divisors (9656424).

12400324 is a wasteful number, since it uses less digits than its factorization.

12400324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50886 (or 50884 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12400324 is about 3521.4093769399. The cubic root of 12400324 is about 231.4609213674.

Adding to 12400324 its reverse (42300421), we get a palindrome (54700745).

The spelling of 12400324 in words is "twelve million, four hundred thousand, three hundred twenty-four".