404243213124 has 48 divisors (see below), whose sum is σ = 966307882176. Its totient is φ = 131451955200.

The previous prime is 404243213093. The next prime is 404243213149. The reversal of 404243213124 is 421312342404.

It is a junction number, because it is equal to n+sod(n) for n = 404243213091 and 404243213100.

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, 12343179 + ... + 12375885.

It is an arithmetic number, because the mean of its divisors is an integer number (20131414212).

Almost surely, 2^404243213124 is an apocalyptic number.

It is an amenable number.

404243213124 is an abundant number, since it is smaller than the sum of its proper divisors (562064669052).

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

404243213124 is a wasteful number, since it uses less digits than its factorization.

404243213124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57876 (or 57874 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 404243213124 its reverse (421312342404), we get a palindrome (825555555528).

The spelling of 404243213124 in words is "four hundred four billion, two hundred forty-three million, two hundred thirteen thousand, one hundred twenty-four".