12266140 has 24 divisors (see below), whose sum is σ = 25824960. Its totient is φ = 4893888.

The previous prime is 12266123. The next prime is 12266171. The reversal of 12266140 is 4166221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13954 + ... + 14806.

It is an arithmetic number, because the mean of its divisors is an integer number (1076040).

Almost surely, 2^12266140 is an apocalyptic number.

12266140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12266140 is an abundant number, since it is smaller than the sum of its proper divisors (13558820).

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

12266140 is a wasteful number, since it uses less digits than its factorization.

12266140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12266140 is about 3502.3049553116. The cubic root of 12266140 is about 230.6230115892.

The spelling of 12266140 in words is "twelve million, two hundred sixty-six thousand, one hundred forty".