12023445 has 32 divisors (see below), whose sum is σ = 22505472. Its totient is φ = 5366592.

The previous prime is 12023419. The next prime is 12023461. The reversal of 12023445 is 54432021.

It is not a de Polignac number, because 12023445 - 2⁷ = 12023317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3184 + ... + 5846.

It is an arithmetic number, because the mean of its divisors is an integer number (703296).

Almost surely, 2^12023445 is an apocalyptic number.

12023445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12023445 is a deficient number, since it is larger than the sum of its proper divisors (10482027).

12023445 is a wasteful number, since it uses less digits than its factorization.

12023445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12023445 is about 3467.4839581460. The cubic root of 12023445 is about 229.0918505453.

Adding to 12023445 its reverse (54432021), we get a palindrome (66455466).

The spelling of 12023445 in words is "twelve million, twenty-three thousand, four hundred forty-five".