12645850 has 24 divisors (see below), whose sum is σ = 26882208. Its totient is φ = 4335600.

The previous prime is 12645833. The next prime is 12645859. The reversal of 12645850 is 5854621.

It is not an unprimeable number, because it can be changed into a prime (12645859) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17716 + ... + 18415.

It is an arithmetic number, because the mean of its divisors is an integer number (1120092).

Almost surely, 2^12645850 is an apocalyptic number.

12645850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12645850 is an abundant number, since it is smaller than the sum of its proper divisors (14236358).

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

12645850 is a wasteful number, since it uses less digits than its factorization.

12645850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36150 (or 36145 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 12645850 is about 3556.1003922837. The cubic root of 12645850 is about 232.9785879247.

The spelling of 12645850 in words is "twelve million, six hundred forty-five thousand, eight hundred fifty".