12426172 has 12 divisors (see below), whose sum is σ = 23722776. Its totient is φ = 5648240.

The previous prime is 12426151. The next prime is 12426173. The reversal of 12426172 is 27162421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141163 + ... + 141250.

It is an arithmetic number, because the mean of its divisors is an integer number (1976898).

Almost surely, 2^12426172 is an apocalyptic number.

It is an amenable number.

12426172 is a deficient number, since it is larger than the sum of its proper divisors (11296604).

12426172 is a wasteful number, since it uses less digits than its factorization.

12426172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282428 (or 282426 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 12426172 is about 3525.0775877986. The cubic root of 12426172 is about 231.6216335587.

Adding to 12426172 its reverse (27162421), we get a palindrome (39588593).

The spelling of 12426172 in words is "twelve million, four hundred twenty-six thousand, one hundred seventy-two".