12432244140 has 72 divisors (see below), whose sum is σ = 37731705648. Its totient is φ = 3313457280.

The previous prime is 12432244093. The next prime is 12432244157. The reversal of 12432244140 is 4144223421.

12432244140 is a `hidden beast` number, since 1 + 24 + 3 + 224 + 414 + 0 = 666.

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, 330075 + ... + 365805.

Almost surely, 2^12432244140 is an apocalyptic number.

12432244140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432244140 is an abundant number, since it is smaller than the sum of its proper divisors (25299461508).

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

12432244140 is a wasteful number, since it uses less digits than its factorization.

12432244140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37679 (or 37674 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12432244140 its reverse (4144223421), we get a palindrome (16576467561).

The spelling of 12432244140 in words is "twelve billion, four hundred thirty-two million, two hundred forty-four thousand, one hundred forty".