12385812 has 12 divisors (see below), whose sum is σ = 28900256. Its totient is φ = 4128600.

The previous prime is 12385783. The next prime is 12385819. The reversal of 12385812 is 21858321.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12385812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12385819) 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, 516064 + ... + 516087.

Almost surely, 2^12385812 is an apocalyptic number.

12385812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12385812 is an abundant number, since it is smaller than the sum of its proper divisors (16514444).

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

12385812 is a wasteful number, since it uses less digits than its factorization.

12385812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032158 (or 1032156 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 12385812 is about 3519.3482351140. The cubic root of 12385812 is about 231.3705938334.

The spelling of 12385812 in words is "twelve million, three hundred eighty-five thousand, eight hundred twelve".