12440424200 has 24 divisors (see below), whose sum is σ = 28923986730. Its totient is φ = 4976169600.

The previous prime is 12440424181. The next prime is 12440424209. The reversal of 12440424200 is 242404421.

It can be written as a sum of positive squares in 3 ways, for example, as 11172067204 + 1268356996 = 105698^2 + 35614^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12440424209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31100861 + ... + 31101260.

Almost surely, 2^12440424200 is an apocalyptic number.

12440424200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440424200 is an abundant number, since it is smaller than the sum of its proper divisors (16483562530).

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

12440424200 is a wasteful number, since it uses less digits than its factorization.

12440424200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62202137 (or 62202128 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 12440424200 its reverse (242404421), we get a palindrome (12682828621).

The spelling of 12440424200 in words is "twelve billion, four hundred forty million, four hundred twenty-four thousand, two hundred".