12203442 has 24 divisors (see below), whose sum is σ = 26891280. Its totient is φ = 3998520.

The previous prime is 12203437. The next prime is 12203449. The reversal of 12203442 is 24430221.

12203442 is a `hidden beast` number, since 1 + 220 + 3 + 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 (12203449) 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 11 ways as a sum of consecutive naturals, for example, 4684 + ... + 6807.

It is an arithmetic number, because the mean of its divisors is an integer number (1120470).

Almost surely, 2^12203442 is an apocalyptic number.

12203442 is an abundant number, since it is smaller than the sum of its proper divisors (14687838).

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

12203442 is a wasteful number, since it uses less digits than its factorization.

12203442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558 (or 11555 counting only the distinct ones).

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

The square root of 12203442 is about 3493.3425254332. The cubic root of 12203442 is about 230.2293993530.

Adding to 12203442 its reverse (24430221), we get a palindrome (36633663).

The spelling of 12203442 in words is "twelve million, two hundred three thousand, four hundred forty-two".