12055390 has 8 divisors (see below), whose sum is σ = 21699720. Its totient is φ = 4822152.

The previous prime is 12055361. The next prime is 12055391. The reversal of 12055390 is 9355021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602760 + ... + 602779.

It is an arithmetic number, because the mean of its divisors is an integer number (2712465).

Almost surely, 2^12055390 is an apocalyptic number.

12055390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12055390 is a deficient number, since it is larger than the sum of its proper divisors (9644330).

12055390 is a wasteful number, since it uses less digits than its factorization.

12055390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205546.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 12055390 is about 3472.0872684885. The cubic root of 12055390 is about 229.2945619248.

The spelling of 12055390 in words is "twelve million, fifty-five thousand, three hundred ninety".