12538286 has 8 divisors (see below), whose sum is σ = 18923304. Its totient is φ = 6230520.

The previous prime is 12538283. The next prime is 12538297. The reversal of 12538286 is 68283521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538283) 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, 18905 + ... + 19556.

It is an arithmetic number, because the mean of its divisors is an integer number (2365413).

Almost surely, 2^12538286 is an apocalyptic number.

12538286 is a deficient number, since it is larger than the sum of its proper divisors (6385018).

12538286 is a wasteful number, since it uses less digits than its factorization.

12538286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38626.

The product of its digits is 23040, while the sum is 35.

The square root of 12538286 is about 3540.9442243560. The cubic root of 12538286 is about 232.3161440080.

The spelling of 12538286 in words is "twelve million, five hundred thirty-eight thousand, two hundred eighty-six".