123004404 has 72 divisors (see below), whose sum is σ = 337908480. Its totient is φ = 37584000.

The previous prime is 123004403. The next prime is 123004433. The reversal of 123004404 is 404400321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123004403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18304 + ... + 24104.

Almost surely, 2^123004404 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 123004404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168954240).

123004404 is an abundant number, since it is smaller than the sum of its proper divisors (214904076).

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

123004404 is a wasteful number, since it uses less digits than its factorization.

123004404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861 (or 5856 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 123004404 is about 11090.7350522858. The cubic root of 123004404 is about 497.3249187379.

Adding to 123004404 its reverse (404400321), we get a palindrome (527404725).

The spelling of 123004404 in words is "one hundred twenty-three million, four thousand, four hundred four".