12727220 has 96 divisors (see below), whose sum is σ = 32006016. Its totient is φ = 4198400.

The previous prime is 12727213. The next prime is 12727229. The reversal of 12727220 is 2272721.

It is a super-3 number, since 3×12727220³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12727229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153299 + ... + 153381.

It is an arithmetic number, because the mean of its divisors is an integer number (333396).

Almost surely, 2^12727220 is an apocalyptic number.

12727220 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 12727220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16003008).

12727220 is an abundant number, since it is smaller than the sum of its proper divisors (19278796).

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

12727220 is a wasteful number, since it uses less digits than its factorization.

12727220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 12727220 is about 3567.5229501714. The cubic root of 12727220 is about 233.4772219083.

Adding to 12727220 its reverse (2272721), we get a palindrome (14999941).

The spelling of 12727220 in words is "twelve million, seven hundred twenty-seven thousand, two hundred twenty".