12249288 has 48 divisors (see below), whose sum is σ = 33731100. Its totient is φ = 4014720.

The previous prime is 12249269. The next prime is 12249323. The reversal of 12249288 is 88294221.

12249288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 675684 = 3402^2 + 822^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2998 + ... + 5786.

Almost surely, 2^12249288 is an apocalyptic number.

12249288 is a gapful number since it is divisible by the number (18) 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 12249288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16865550).

12249288 is an abundant number, since it is smaller than the sum of its proper divisors (21481812).

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

12249288 is a wasteful number, since it uses less digits than its factorization.

12249288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2855 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12249288 is about 3499.8982842363. The cubic root of 12249288 is about 230.5173483523.

The spelling of 12249288 in words is "twelve million, two hundred forty-nine thousand, two hundred eighty-eight".