12305250 has 64 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 3279600.

The previous prime is 12305243. The next prime is 12305261. The reversal of 12305250 is 5250321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5839 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (533520).

Almost surely, 2^12305250 is an apocalyptic number.

12305250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12305250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17072640).

12305250 is an abundant number, since it is smaller than the sum of its proper divisors (21840030).

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

12305250 is a wasteful number, since it uses less digits than its factorization.

12305250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 12305250 is about 3507.8839775568. The cubic root of 12305250 is about 230.8678616852.

Adding to 12305250 its reverse (5250321), we get a palindrome (17555571).

The spelling of 12305250 in words is "twelve million, three hundred five thousand, two hundred fifty".