123442404 has 24 divisors (see below), whose sum is σ = 288274560. Its totient is φ = 41112864.

The previous prime is 123442387. The next prime is 123442409. The reversal of 123442404 is 404244321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123442409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13462 + ... + 20690.

It is an arithmetic number, because the mean of its divisors is an integer number (12011440).

Almost surely, 2^123442404 is an apocalyptic number.

It is an amenable number.

123442404 is an abundant number, since it is smaller than the sum of its proper divisors (164832156).

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

123442404 is a wasteful number, since it uses less digits than its factorization.

123442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659 (or 8657 counting only the distinct ones).

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

The square root of 123442404 is about 11110.4637166952. The cubic root of 123442404 is about 497.9145189647.

Adding to 123442404 its reverse (404244321), we get a palindrome (527686725).

The spelling of 123442404 in words is "one hundred twenty-three million, four hundred forty-two thousand, four hundred four".