12290844 has 24 divisors (see below), whose sum is σ = 28763280. Its totient is φ = 4084864.

The previous prime is 12290843. The next prime is 12290851. The reversal of 12290844 is 44809221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3352 + ... + 5984.

It is an arithmetic number, because the mean of its divisors is an integer number (1198470).

Almost surely, 2^12290844 is an apocalyptic number.

It is an amenable number.

12290844 is an abundant number, since it is smaller than the sum of its proper divisors (16472436).

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

12290844 is a wasteful number, since it uses less digits than its factorization.

12290844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12290844 is about 3505.8300015831. The cubic root of 12290844 is about 230.7777326440. Note that the first 4 decimals are identical.

The spelling of 12290844 in words is "twelve million, two hundred ninety thousand, eight hundred forty-four".