12454224 has 80 divisors (see below), whose sum is σ = 34819200. Its totient is φ = 3824128.

The previous prime is 12454223. The next prime is 12454229. The reversal of 12454224 is 42245421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12454194 and 12454203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31822 + ... + 32210.

It is an arithmetic number, because the mean of its divisors is an integer number (435240).

Almost surely, 2^12454224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12454224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17409600).

12454224 is an abundant number, since it is smaller than the sum of its proper divisors (22364976).

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

12454224 is a wasteful number, since it uses less digits than its factorization.

12454224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 446 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 12454224 is about 3529.0542642470. The cubic root of 12454224 is about 231.7957973283.

Adding to 12454224 its reverse (42245421), we get a palindrome (54699645).

The spelling of 12454224 in words is "twelve million, four hundred fifty-four thousand, two hundred twenty-four".