12192426 has 12 divisors (see below), whose sum is σ = 26416962. Its totient is φ = 4064136.

The previous prime is 12192421. The next prime is 12192437. The reversal of 12192426 is 62429121.

It can be written as a sum of positive squares in only one way, i.e., 10246401 + 1946025 = 3201^2 + 1395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12192426.

It is not an unprimeable number, because it can be changed into a prime (12192421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338661 + ... + 338696.

Almost surely, 2^12192426 is an apocalyptic number.

12192426 is an abundant number, since it is smaller than the sum of its proper divisors (14224536).

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

12192426 is a wasteful number, since it uses less digits than its factorization.

12192426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677365 (or 677362 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12192426 is about 3491.7654560408. The cubic root of 12192426 is about 230.1601027675.

The spelling of 12192426 in words is "twelve million, one hundred ninety-two thousand, four hundred twenty-six".