12288650 has 24 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 4468400.

The previous prime is 12288631. The next prime is 12288659. The reversal of 12288650 is 5688221.

It is not an unprimeable number, because it can be changed into a prime (12288659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10622 + ... + 11721.

It is an arithmetic number, because the mean of its divisors is an integer number (1038996).

Almost surely, 2^12288650 is an apocalyptic number.

12288650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12288650 is an abundant number, since it is smaller than the sum of its proper divisors (12647254).

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

12288650 is a wasteful number, since it uses less digits than its factorization.

12288650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22366 (or 22361 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 12288650 is about 3505.5170802608. The cubic root of 12288650 is about 230.7640000239.

The spelling of 12288650 in words is "twelve million, two hundred eighty-eight thousand, six hundred fifty".