123404304 has 80 divisors (see below), whose sum is σ = 331407360. Its totient is φ = 39527040.

The previous prime is 123404279. The next prime is 123404327. The reversal of 123404304 is 403404321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355459 + ... + 355805.

It is an arithmetic number, because the mean of its divisors is an integer number (4142592).

Almost surely, 2^123404304 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 123404304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165703680).

123404304 is an abundant number, since it is smaller than the sum of its proper divisors (208003056).

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

123404304 is a wasteful number, since it uses less digits than its factorization.

123404304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 123404304 is about 11108.7489844717. The cubic root of 123404304 is about 497.8632872576.

Adding to 123404304 its reverse (403404321), we get a palindrome (526808625).

The spelling of 123404304 in words is "one hundred twenty-three million, four hundred four thousand, three hundred four".