12402443024 has 20 divisors (see below), whose sum is σ = 25443247644. Its totient is φ = 5836443648.

The previous prime is 12402443003. The next prime is 12402443057. The reversal of 12402443024 is 42034420421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6994311424 + 5408131600 = 83632^2 + 73540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12402442984 and 12402443002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22798337 + ... + 22798880.

Almost surely, 2^12402443024 is an apocalyptic number.

It is an amenable number.

12402443024 is an abundant number, since it is smaller than the sum of its proper divisors (13040804620).

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

12402443024 is a wasteful number, since it uses less digits than its factorization.

12402443024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45597242 (or 45597236 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 12402443024 its reverse (42034420421), we get a palindrome (54436863445).

The spelling of 12402443024 in words is "twelve billion, four hundred two million, four hundred forty-three thousand, twenty-four".