123404244 has 12 divisors (see below), whose sum is σ = 287943264. Its totient is φ = 41134744.

The previous prime is 123404231. The next prime is 123404261. The reversal of 123404244 is 442404321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141832 + ... + 5141855.

It is an arithmetic number, because the mean of its divisors is an integer number (23995272).

Almost surely, 2^123404244 is an apocalyptic number.

It is an amenable number.

123404244 is an abundant number, since it is smaller than the sum of its proper divisors (164539020).

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

123404244 is a wasteful number, since it uses less digits than its factorization.

123404244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283694 (or 10283692 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 123404244 is about 11108.7462838972. The cubic root of 123404244 is about 497.8632065695.

Adding to 123404244 its reverse (442404321), we get a palindrome (565808565).

The spelling of 123404244 in words is "one hundred twenty-three million, four hundred four thousand, two hundred forty-four".