12404423430 has 176 divisors, whose sum is σ = 38289045024. Its totient is φ = 2834352000.

The previous prime is 12404423401. The next prime is 12404423453. The reversal of 12404423430 is 3432440421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12404423394 and 12404423403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 4131930 + ... + 4134930.

Almost surely, 2^12404423430 is an apocalyptic number.

12404423430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12404423430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19144522512).

12404423430 is an abundant number, since it is smaller than the sum of its proper divisors (25884621594).

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

12404423430 is an frugal number, since it uses more digits than its factorization.

12404423430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12404423430 its reverse (3432440421), we get a palindrome (15836863851).

The spelling of 12404423430 in words is "twelve billion, four hundred four million, four hundred twenty-three thousand, four hundred thirty".