12424433400 has 192 divisors, whose sum is σ = 43197235200. Its totient is φ = 3282065280.

The previous prime is 12424433387. The next prime is 12424433423. The reversal of 12424433400 is 433442421.

It is a happy number.

12424433400 is a `hidden beast` number, since 12 + 4 + 244 + 3 + 3 + 400 = 666.

It is a super-2 number, since 2×12424433400² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 567049 + ... + 588551.

It is an arithmetic number, because the mean of its divisors is an integer number (224985600).

Almost surely, 2^12424433400 is an apocalyptic number.

12424433400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12424433400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21598617600).

12424433400 is an abundant number, since it is smaller than the sum of its proper divisors (30772801800).

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

12424433400 is a wasteful number, since it uses less digits than its factorization.

12424433400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635 (or 21620 counting only the distinct ones).

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

Adding to 12424433400 its reverse (433442421), we get a palindrome (12857875821).

The spelling of 12424433400 in words is "twelve billion, four hundred twenty-four million, four hundred thirty-three thousand, four hundred".