12499266 has 64 divisors (see below), whose sum is σ = 28498176. Its totient is φ = 3628800.

The previous prime is 12499247. The next prime is 12499271. The reversal of 12499266 is 66299421.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176011 + ... + 176081.

It is an arithmetic number, because the mean of its divisors is an integer number (445284).

Almost surely, 2^12499266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12499266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14249088).

12499266 is an abundant number, since it is smaller than the sum of its proper divisors (15998910).

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

12499266 is a wasteful number, since it uses less digits than its factorization.

12499266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187.

The product of its digits is 46656, while the sum is 39.

The square root of 12499266 is about 3535.4301011334. The cubic root of 12499266 is about 232.0748990235.

The spelling of 12499266 in words is "twelve million, four hundred ninety-nine thousand, two hundred sixty-six".