12055280 has 40 divisors (see below), whose sum is σ = 28938624. Its totient is φ = 4665600.

The previous prime is 12055273. The next prime is 12055283. The reversal of 12055280 is 8255021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055283) 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, 50 + ... + 4910.

Almost surely, 2^12055280 is an apocalyptic number.

12055280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12055280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14469312).

12055280 is an abundant number, since it is smaller than the sum of its proper divisors (16883344).

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

12055280 is a wasteful number, since it uses less digits than its factorization.

12055280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4899 counting only the distinct ones).

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

The square root of 12055280 is about 3472.0714278367. The cubic root of 12055280 is about 229.2938645195.

The spelling of 12055280 in words is "twelve million, fifty-five thousand, two hundred eighty".