12425424 has 80 divisors (see below), whose sum is σ = 35515584. Its totient is φ = 3712000.

The previous prime is 12425423. The next prime is 12425443. The reversal of 12425424 is 42452421.

It is a happy number.

12425424 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 = 12425394 and 12425403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425423) 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, 53212 + ... + 53444.

Almost surely, 2^12425424 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 12425424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17757792).

12425424 is an abundant number, since it is smaller than the sum of its proper divisors (23090160).

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

12425424 is a wasteful number, since it uses less digits than its factorization.

12425424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 350 counting only the distinct ones).

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

The square root of 12425424 is about 3524.9714892464. The cubic root of 12425424 is about 231.6169859365.

Adding to 12425424 its reverse (42452421), we get a palindrome (54877845).

It can be divided in two parts, 1242 and 5424, that added together give a palindrome (6666).

The spelling of 12425424 in words is "twelve million, four hundred twenty-five thousand, four hundred twenty-four".