12027920 has 40 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 4784000.

The previous prime is 12027913. The next prime is 12027937. The reversal of 12027920 is 2972021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19781 + ... + 20379.

It is an arithmetic number, because the mean of its divisors is an integer number (703080).

Almost surely, 2^12027920 is an apocalyptic number.

12027920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12027920 is an abundant number, since it is smaller than the sum of its proper divisors (16095280).

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

12027920 is a wasteful number, since it uses less digits than its factorization.

12027920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12027920 is about 3468.1291786783. The cubic root of 12027920 is about 229.1202688804.

Adding to 12027920 its reverse (2972021), we get a palindrome (14999941).

The spelling of 12027920 in words is "twelve million, twenty-seven thousand, nine hundred twenty".