12055320 has 48 divisors (see below), whose sum is σ = 39180960. Its totient is φ = 3214656.

The previous prime is 12055319. The next prime is 12055343. The reversal of 12055320 is 2355021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12055293 and 12055302.

It is a congruent number.

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, 16384 + ... + 17103.

It is an arithmetic number, because the mean of its divisors is an integer number (816270).

Almost surely, 2^12055320 is an apocalyptic number.

12055320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055320 is an abundant number, since it is smaller than the sum of its proper divisors (27125640).

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

12055320 is a wasteful number, since it uses less digits than its factorization.

12055320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33504 (or 33497 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 12055320 is about 3472.0771880821. The cubic root of 12055320 is about 229.2941181219.

The spelling of 12055320 in words is "twelve million, fifty-five thousand, three hundred twenty".