12089140 has 24 divisors (see below), whose sum is σ = 29014272. Its totient is φ = 4144800.

The previous prime is 12089131. The next prime is 12089173. The reversal of 12089140 is 4198021.

It is a happy number.

It is a super-2 number, since 2×12089140² = 292294611879200, which contains 22 as substring.

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, 43036 + ... + 43315.

It is an arithmetic number, because the mean of its divisors is an integer number (1208928).

Almost surely, 2^12089140 is an apocalyptic number.

12089140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12089140 is an abundant number, since it is smaller than the sum of its proper divisors (16925132).

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

12089140 is a wasteful number, since it uses less digits than its factorization.

12089140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86367 (or 86365 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12089140 is about 3476.9440605221. The cubic root of 12089140 is about 229.5083385284.

The spelling of 12089140 in words is "twelve million, eighty-nine thousand, one hundred forty".