12066840 has 64 divisors (see below), whose sum is σ = 40226400. Its totient is φ = 3217536.

The previous prime is 12066829. The next prime is 12066883. The reversal of 12066840 is 4866021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4507 + ... + 6666.

Almost surely, 2^12066840 is an apocalyptic number.

12066840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12066840 is an abundant number, since it is smaller than the sum of its proper divisors (28159560).

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

12066840 is a wasteful number, since it uses less digits than its factorization.

12066840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193 (or 11183 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12066840 is about 3473.7357412446. The cubic root of 12066840 is about 229.3671322849.

The spelling of 12066840 in words is "twelve million, sixty-six thousand, eight hundred forty".