12066280 has 16 divisors (see below), whose sum is σ = 27149220. Its totient is φ = 4826496.

The previous prime is 12066269. The next prime is 12066289. The reversal of 12066280 is 8266021.

12066280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11062276 + 1004004 = 3326^2 + 1002^2 .

It is a super-2 number, since 2×12066280² = 291190226076800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12066289) 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, 150789 + ... + 150868.

Almost surely, 2^12066280 is an apocalyptic number.

12066280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12066280 is an abundant number, since it is smaller than the sum of its proper divisors (15082940).

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

12066280 is a wasteful number, since it uses less digits than its factorization.

12066280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301668 (or 301664 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12066280 is about 3473.6551354445. The cubic root of 12066280 is about 229.3635840601.

The spelling of 12066280 in words is "twelve million, sixty-six thousand, two hundred eighty".