12085520 has 40 divisors (see below), whose sum is σ = 29581440. Its totient is φ = 4579200.

The previous prime is 12085519. The next prime is 12085523. The reversal of 12085520 is 2558021.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12085523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456 + ... + 5495.

It is an arithmetic number, because the mean of its divisors is an integer number (739536).

Almost surely, 2^12085520 is an apocalyptic number.

12085520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12085520 is an abundant number, since it is smaller than the sum of its proper divisors (17495920).

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

12085520 is a wasteful number, since it uses less digits than its factorization.

12085520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983 (or 7977 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 12085520 is about 3476.4234494664. The cubic root of 12085520 is about 229.4854280725.

The spelling of 12085520 in words is "twelve million, eighty-five thousand, five hundred twenty".