12230442 has 48 divisors (see below), whose sum is σ = 30588480. Its totient is φ = 3459456.

The previous prime is 12230441. The next prime is 12230459. The reversal of 12230442 is 24403221.

12230442 is a `hidden beast` number, since 1 + 223 + 0 + 442 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12230441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13809 + ... + 14667.

It is an arithmetic number, because the mean of its divisors is an integer number (637260).

Almost surely, 2^12230442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12230442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15294240).

12230442 is an abundant number, since it is smaller than the sum of its proper divisors (18358038).

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

12230442 is a wasteful number, since it uses less digits than its factorization.

12230442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12230442 is about 3497.2048839037. The cubic root of 12230442 is about 230.3990677407.

Adding to 12230442 its reverse (24403221), we get a palindrome (36633663).

The spelling of 12230442 in words is "twelve million, two hundred thirty thousand, four hundred forty-two".