12438384430 has 32 divisors (see below), whose sum is σ = 23001148800. Its totient is φ = 4840039680.

The previous prime is 12438384397. The next prime is 12438384433. The reversal of 12438384430 is 3448383421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438384433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99627 + ... + 186553.

It is an arithmetic number, because the mean of its divisors is an integer number (718785900).

Almost surely, 2^12438384430 is an apocalyptic number.

12438384430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12438384430 is a deficient number, since it is larger than the sum of its proper divisors (10562764370).

12438384430 is a wasteful number, since it uses less digits than its factorization.

12438384430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87324.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 12438384430 in words is "twelve billion, four hundred thirty-eight million, three hundred eighty-four thousand, four hundred thirty".