12423444 has 24 divisors (see below), whose sum is σ = 31623648. Its totient is φ = 3764640.

The previous prime is 12423409. The next prime is 12423457. The reversal of 12423444 is 44432421.

It is a happy number.

It is a super-2 number, since 2×12423444² = 308683921642272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46927 + ... + 47190.

It is an arithmetic number, because the mean of its divisors is an integer number (1317652).

Almost surely, 2^12423444 is an apocalyptic number.

It is an amenable number.

12423444 is an abundant number, since it is smaller than the sum of its proper divisors (19200204).

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

12423444 is a wasteful number, since it uses less digits than its factorization.

12423444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94135 (or 94133 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 12423444 is about 3524.6906247216. The cubic root of 12423444 is about 231.6046825068.

Adding to 12423444 its reverse (44432421), we get a palindrome (56855865).

The spelling of 12423444 in words is "twelve million, four hundred twenty-three thousand, four hundred forty-four".