12646000 has 40 divisors (see below), whose sum is σ = 30582864. Its totient is φ = 5057600.

The previous prime is 12645989. The next prime is 12646003. The reversal of 12646000 is 64621.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162 + ... + 5161.

Almost surely, 2^12646000 is an apocalyptic number.

12646000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12646000 is an abundant number, since it is smaller than the sum of its proper divisors (17936864).

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

12646000 is an equidigital number, since it uses as much as digits as its factorization.

12646000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12646000 is about 3556.1214827393. The cubic root of 12646000 is about 232.9795090873.

The spelling of 12646000 in words is "twelve million, six hundred forty-six thousand".