12071680 has 36 divisors (see below), whose sum is σ = 28918512. Its totient is φ = 4828160.

The previous prime is 12071663. The next prime is 12071681. The reversal of 12071680 is 8617021.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12071681) 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, 3436 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (803292).

Almost surely, 2^12071680 is an apocalyptic number.

12071680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12071680 is an abundant number, since it is smaller than the sum of its proper divisors (16846832).

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

12071680 is an frugal number, since it uses more digits than its factorization.

12071680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452 (or 9438 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12071680 is about 3474.4323277336. The cubic root of 12071680 is about 229.3977945110.

The spelling of 12071680 in words is "twelve million, seventy-one thousand, six hundred eighty".