12243424132440 has 96 divisors (see below), whose sum is σ = 39795470423280. Its totient is φ = 3264556836096.

The previous prime is 12243424132427. The next prime is 12243424132481. The reversal of 12243424132440 is 4423142434221.

12243424132440 is a `hidden beast` number, since 1 + 2 + 2 + 43 + 42 + 4 + 132 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12243424132395 and 12243424132404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1456362 + ... + 5158278.

Almost surely, 2^{12243424132440} is an apocalyptic number.

12243424132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12243424132440 is an abundant number, since it is smaller than the sum of its proper divisors (27552046290840).

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

12243424132440 is a wasteful number, since it uses less digits than its factorization.

12243424132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711121 (or 3711114 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 12243424132440 its reverse (4423142434221), we get a palindrome (16666566566661).

The spelling of 12243424132440 in words is "twelve trillion, two hundred forty-three billion, four hundred twenty-four million, one hundred thirty-two thousand, four hundred forty".