12684430 has 32 divisors (see below), whose sum is σ = 25139808. Its totient is φ = 4607680.

The previous prime is 12684421. The next prime is 12684449. The reversal of 12684430 is 3448621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12834 + ... + 13786.

It is an arithmetic number, because the mean of its divisors is an integer number (785619).

Almost surely, 2^12684430 is an apocalyptic number.

12684430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12684430 is a deficient number, since it is larger than the sum of its proper divisors (12455378).

12684430 is an equidigital number, since it uses as much as digits as its factorization.

12684430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 12684430 is about 3561.5207426042. The cubic root of 12684430 is about 233.2152713388.

The spelling of 12684430 in words is "twelve million, six hundred eighty-four thousand, four hundred thirty".