12381726 has 16 divisors (see below), whose sum is σ = 28301184. Its totient is φ = 3537624.

The previous prime is 12381709. The next prime is 12381731. The reversal of 12381726 is 62718321.

It is a junction number, because it is equal to n+sod(n) for n = 12381693 and 12381702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147360 + ... + 147443.

It is an arithmetic number, because the mean of its divisors is an integer number (1768824).

Almost surely, 2^12381726 is an apocalyptic number.

12381726 is an abundant number, since it is smaller than the sum of its proper divisors (15919458).

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

12381726 is a wasteful number, since it uses less digits than its factorization.

12381726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294815.

The product of its digits is 4032, while the sum is 30.

The square root of 12381726 is about 3518.7676820160. The cubic root of 12381726 is about 231.3451484764.

The spelling of 12381726 in words is "twelve million, three hundred eighty-one thousand, seven hundred twenty-six".