12249340 has 48 divisors (see below), whose sum is σ = 27740160. Its totient is φ = 4530240.

The previous prime is 12249323. The next prime is 12249353. The reversal of 12249340 is 4394221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13831 + ... + 14689.

It is an arithmetic number, because the mean of its divisors is an integer number (577920).

Almost surely, 2^12249340 is an apocalyptic number.

12249340 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 12249340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13870080).

12249340 is an abundant number, since it is smaller than the sum of its proper divisors (15490820).

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

12249340 is a wasteful number, since it uses less digits than its factorization.

12249340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12249340 is about 3499.9057130157. The cubic root of 12249340 is about 230.5176745450.

The spelling of 12249340 in words is "twelve million, two hundred forty-nine thousand, three hundred forty".