123412404 has 12 divisors (see below), whose sum is σ = 287962304. Its totient is φ = 41137464.

The previous prime is 123412403. The next prime is 123412417. The reversal of 123412404 is 404214321.

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

It is a super-2 number, since 2×123412404² = 30461242922118432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123412403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5142172 + ... + 5142195.

Almost surely, 2^123412404 is an apocalyptic number.

It is an amenable number.

123412404 is an abundant number, since it is smaller than the sum of its proper divisors (164549900).

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

123412404 is a wasteful number, since it uses less digits than its factorization.

123412404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10284374 (or 10284372 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 123412404 is about 11109.1135559954. The cubic root of 123412404 is about 497.8741799204.

Adding to 123412404 its reverse (404214321), we get a palindrome (527626725).

The spelling of 123412404 in words is "one hundred twenty-three million, four hundred twelve thousand, four hundred four".