12248720 has 80 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 4300800.

The previous prime is 12248683. The next prime is 12248729. The reversal of 12248720 is 2784221.

12248720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12248720² = 300062283276800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12248720.

It is not an unprimeable number, because it can be changed into a prime (12248729) 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, 27056 + ... + 27504.

It is an arithmetic number, because the mean of its divisors is an integer number (401760).

Almost surely, 2^12248720 is an apocalyptic number.

12248720 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 12248720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16070400).

12248720 is an abundant number, since it is smaller than the sum of its proper divisors (19892080).

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

12248720 is a wasteful number, since it uses less digits than its factorization.

12248720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12248720 is about 3499.8171380802. The cubic root of 12248720 is about 230.5137852641.

The spelling of 12248720 in words is "twelve million, two hundred forty-eight thousand, seven hundred twenty".