12030720 has 144 divisors (see below), whose sum is σ = 41550432. Its totient is φ = 2949120.

The previous prime is 12030719. The next prime is 12030727. The reversal of 12030720 is 2703021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12030720.

It is not an unprimeable number, because it can be changed into a prime (12030727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49800 + ... + 50040.

Almost surely, 2^12030720 is an apocalyptic number.

12030720 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 12030720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20775216).

12030720 is an abundant number, since it is smaller than the sum of its proper divisors (29519712).

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

12030720 is a wasteful number, since it uses less digits than its factorization.

12030720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 12030720 is about 3468.5328310397. The cubic root of 12030720 is about 229.1380466003.

Adding to 12030720 its reverse (2703021), we get a palindrome (14733741).

It can be divided in two parts, 120 and 30720, that multiplied together give a square (3686400 = 1920²).

The spelling of 12030720 in words is "twelve million, thirty thousand, seven hundred twenty".