12444478 has 8 divisors (see below), whose sum is σ = 18736920. Its totient is φ = 6198840.

The previous prime is 12444473. The next prime is 12444503. The reversal of 12444478 is 87444421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11028 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (2342115).

Almost surely, 2^12444478 is an apocalyptic number.

12444478 is a deficient number, since it is larger than the sum of its proper divisors (6292442).

12444478 is a wasteful number, since it uses less digits than its factorization.

12444478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23402.

The product of its digits is 28672, while the sum is 34.

The square root of 12444478 is about 3527.6731708025. The cubic root of 12444478 is about 231.7353179446.

Adding to 12444478 its reverse (87444421), we get a palindrome (99888899).

The spelling of 12444478 in words is "twelve million, four hundred forty-four thousand, four hundred seventy-eight".