12269428442 has 8 divisors (see below), whose sum is σ = 18411592116. Its totient is φ = 6132231072.

The previous prime is 12269428439. The next prime is 12269428463. The reversal of 12269428442 is 24482496221.

It can be written as a sum of positive squares in 2 ways, for example, as 10857848401 + 1411580041 = 104201^2 + 37571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12269428393 and 12269428402.

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 3 ways as a sum of consecutive naturals, for example, 1235393 + ... + 1245284.

Almost surely, 2^12269428442 is an apocalyptic number.

12269428442 is a deficient number, since it is larger than the sum of its proper divisors (6142163674).

12269428442 is a wasteful number, since it uses less digits than its factorization.

12269428442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483152.

The product of its digits is 442368, while the sum is 44.

The spelling of 12269428442 in words is "twelve billion, two hundred sixty-nine million, four hundred twenty-eight thousand, four hundred forty-two".