12023442 has 24 divisors (see below), whose sum is σ = 26254800. Its totient is φ = 3976440.

The previous prime is 12023419. The next prime is 12023461. The reversal of 12023442 is 24432021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (1093950).

Almost surely, 2^12023442 is an apocalyptic number.

12023442 is an abundant number, since it is smaller than the sum of its proper divisors (14231358).

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

12023442 is a wasteful number, since it uses less digits than its factorization.

12023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5235 counting only the distinct ones).

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

The square root of 12023442 is about 3467.4835255557. The cubic root of 12023442 is about 229.0918314915.

Adding to 12023442 its reverse (24432021), we get a palindrome (36455463).

The spelling of 12023442 in words is "twelve million, twenty-three thousand, four hundred forty-two".