404040124124 has 48 divisors (see below), whose sum is σ = 870415525056. Its totient is φ = 159807859200.

The previous prime is 404040124073. The next prime is 404040124199. The reversal of 404040124124 is 421421040404.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 404040124093 and 404040124102.

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 15 ways as a sum of consecutive naturals, for example, 1740254 + ... + 1958714.

It is an arithmetic number, because the mean of its divisors is an integer number (18133656772).

Almost surely, 2^404040124124 is an apocalyptic number.

It is an amenable number.

404040124124 is an abundant number, since it is smaller than the sum of its proper divisors (466375400932).

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

404040124124 is a wasteful number, since it uses less digits than its factorization.

404040124124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223566 (or 223564 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 404040124124 its reverse (421421040404), we get a palindrome (825461164528).

The spelling of 404040124124 in words is "four hundred four billion, forty million, one hundred twenty-four thousand, one hundred twenty-four".