12124404 has 60 divisors (see below), whose sum is σ = 33093984. Its totient is φ = 3863376.

The previous prime is 12124369. The next prime is 12124423. The reversal of 12124404 is 40442121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6639 + ... + 8265.

Almost surely, 2^12124404 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 12124404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16546992).

12124404 is an abundant number, since it is smaller than the sum of its proper divisors (20969580).

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

12124404 is a wasteful number, since it uses less digits than its factorization.

12124404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12124404 is about 3482.0114876318. The cubic root of 12124404 is about 229.7312803676.

Adding to 12124404 its reverse (40442121), we get a palindrome (52566525).

The spelling of 12124404 in words is "twelve million, one hundred twenty-four thousand, four hundred four".