12291468 has 48 divisors (see below), whose sum is σ = 33057024. Its totient is φ = 3481920.

The previous prime is 12291463. The next prime is 12291491. The reversal of 12291468 is 86419221.

It is not an unprimeable number, because it can be changed into a prime (12291463) 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 15 ways as a sum of consecutive naturals, for example, 10446 + ... + 11562.

It is an arithmetic number, because the mean of its divisors is an integer number (688688).

Almost surely, 2^12291468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12291468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16528512).

12291468 is an abundant number, since it is smaller than the sum of its proper divisors (20765556).

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

12291468 is a wasteful number, since it uses less digits than its factorization.

12291468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1260 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 12291468 is about 3505.9189950710. The cubic root of 12291468 is about 230.7816380680.

The spelling of 12291468 in words is "twelve million, two hundred ninety-one thousand, four hundred sixty-eight".