12684020 has 48 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 4636800.

The previous prime is 12684019. The next prime is 12684029. The reversal of 12684020 is 2048621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684029) 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 15 ways as a sum of consecutive naturals, for example, 10445 + ... + 11595.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^12684020 is an apocalyptic number.

12684020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12684020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515200).

12684020 is an abundant number, since it is smaller than the sum of its proper divisors (16346380).

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

12684020 is a wasteful number, since it uses less digits than its factorization.

12684020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12684020 is about 3561.4631824575. The cubic root of 12684020 is about 233.2127585655.

The spelling of 12684020 in words is "twelve million, six hundred eighty-four thousand, twenty".