12402973242 has 48 divisors (see below), whose sum is σ = 29372417568. Its totient is φ = 3751259040.

The previous prime is 12402973213. The next prime is 12402973249. The reversal of 12402973242 is 24237920421.

It is a happy number.

12402973242 is a `hidden beast` number, since 1 + 2 + 40 + 297 + 324 + 2 = 666.

12402973242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12402973197 and 12402973206.

It is not an unprimeable number, because it can be changed into a prime (12402973249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43668 + ... + 163440.

It is an arithmetic number, because the mean of its divisors is an integer number (611925366).

Almost surely, 2^12402973242 is an apocalyptic number.

12402973242 is an abundant number, since it is smaller than the sum of its proper divisors (16969444326).

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

12402973242 is a wasteful number, since it uses less digits than its factorization.

12402973242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120315 (or 120312 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 12402973242 in words is "twelve billion, four hundred two million, nine hundred seventy-three thousand, two hundred forty-two".