1001440404424 has 32 divisors (see below), whose sum is σ = 1881431932320. Its totient is φ = 499725821056.

The previous prime is 1001440404421. The next prime is 1001440404499. The reversal of 1001440404424 is 4244040441001.

It is a super-2 number, since 2×1001440404424² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001440404392 and 1001440404401.

It is not an unprimeable number, because it can be changed into a prime (1001440404421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13997367 + ... + 14068729.

It is an arithmetic number, because the mean of its divisors is an integer number (58794747885).

Almost surely, 2^{1001440404424} is an apocalyptic number.

It is an amenable number.

1001440404424 is a deficient number, since it is larger than the sum of its proper divisors (879991527896).

1001440404424 is a wasteful number, since it uses less digits than its factorization.

1001440404424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74829 (or 74825 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 1001440404424 its reverse (4244040441001), we get a palindrome (5245480845425).

The spelling of 1001440404424 in words is "one trillion, one billion, four hundred forty million, four hundred four thousand, four hundred twenty-four".