12442431402 has 12 divisors (see below), whose sum is σ = 26958601410. Its totient is φ = 4147477128.

The previous prime is 12442431341. The next prime is 12442431451. The reversal of 12442431402 is 20413424421.

12442431402 is a `hidden beast` number, since 12 + 4 + 4 + 243 + 1 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8434401921 + 4008029481 = 91839^2 + 63309^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345623077 + ... + 345623112.

Almost surely, 2^12442431402 is an apocalyptic number.

12442431402 is an abundant number, since it is smaller than the sum of its proper divisors (14516170008).

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

12442431402 is a wasteful number, since it uses less digits than its factorization.

12442431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691246197 (or 691246194 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12442431402 its reverse (20413424421), we get a palindrome (32855855823).

The spelling of 12442431402 in words is "twelve billion, four hundred forty-two million, four hundred thirty-one thousand, four hundred two".