12085380 has 36 divisors (see below), whose sum is σ = 36659532. Its totient is φ = 3222720.

The previous prime is 12085343. The next prime is 12085397. The reversal of 12085380 is 8358021.

It is a happy number.

12085380 is a `hidden beast` number, since 120 + 8 + 538 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 4334724 = 2784^2 + 2082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33391 + ... + 33750.

Almost surely, 2^12085380 is an apocalyptic number.

12085380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12085380 is an abundant number, since it is smaller than the sum of its proper divisors (24574152).

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

12085380 is a wasteful number, since it uses less digits than its factorization.

12085380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67156 (or 67151 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12085380 is about 3476.4033137713. The cubic root of 12085380 is about 229.4845419409.

The spelling of 12085380 in words is "twelve million, eighty-five thousand, three hundred eighty".