123944424 has 64 divisors (see below), whose sum is σ = 325693440. Its totient is φ = 39230400.

The previous prime is 123944423. The next prime is 123944449. The reversal of 123944424 is 424449321.

It is not an unprimeable number, because it can be changed into a prime (123944423) 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, 82609 + ... + 84095.

It is an arithmetic number, because the mean of its divisors is an integer number (5088960).

Almost surely, 2^123944424 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 123944424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162846720).

123944424 is an abundant number, since it is smaller than the sum of its proper divisors (201749016).

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

123944424 is a wasteful number, since it uses less digits than its factorization.

123944424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1666 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 123944424 is about 11133.0330099214. The cubic root of 123944424 is about 498.5885848970.

The spelling of 123944424 in words is "one hundred twenty-three million, nine hundred forty-four thousand, four hundred twenty-four".