404242330024 has 64 divisors (see below), whose sum is σ = 830105418240. Its totient is φ = 183423313920.

The previous prime is 404242330021. The next prime is 404242330049. The reversal of 404242330024 is 420033242404.

It is a happy number.

It is a super-2 number, since 2×404242330024² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404242329974 and 404242330001.

It is not an unprimeable number, because it can be changed into a prime (404242330021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529009 + ... + 2684095.

It is an arithmetic number, because the mean of its divisors is an integer number (12970397160).

Almost surely, 2^404242330024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404242330024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415052709120).

404242330024 is an abundant number, since it is smaller than the sum of its proper divisors (425863088216).

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

404242330024 is a wasteful number, since it uses less digits than its factorization.

404242330024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155530 (or 155526 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 404242330024 its reverse (420033242404), we get a palindrome (824275572428).

The spelling of 404242330024 in words is "four hundred four billion, two hundred forty-two million, three hundred thirty thousand, twenty-four".