404400004024 has 16 divisors (see below), whose sum is σ = 759806996400. Its totient is φ = 201784804992.

The previous prime is 404400004009. The next prime is 404400004031. The reversal of 404400004024 is 420400004404.

It is a super-2 number, since 2×404400004024² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404400003986 and 404400004004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51895489 + ... + 51903280.

It is an arithmetic number, because the mean of its divisors is an integer number (47487937275).

Almost surely, 2^404400004024 is an apocalyptic number.

It is an amenable number.

404400004024 is a deficient number, since it is larger than the sum of its proper divisors (355406992376).

404400004024 is a wasteful number, since it uses less digits than its factorization.

404400004024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103799262 (or 103799258 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 404400004024 its reverse (420400004404), we get a palindrome (824800008428).

The spelling of 404400004024 in words is "four hundred four billion, four hundred million, four thousand, twenty-four".