1001440404430 has 16 divisors (see below), whose sum is σ = 1808351815824. Its totient is φ = 399296364480.

The previous prime is 1001440404421. The next prime is 1001440404499. The reversal of 1001440404430 is 344040441001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001440404395 and 1001440404404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159971376 + ... + 159977635.

It is an arithmetic number, because the mean of its divisors is an integer number (113021988489).

Almost surely, 2^{1001440404430} is an apocalyptic number.

1001440404430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001440404430 is a deficient number, since it is larger than the sum of its proper divisors (806911411394).

1001440404430 is a wasteful number, since it uses less digits than its factorization.

1001440404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319949331.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1001440404430 its reverse (344040441001), we get a palindrome (1345480845431).

The spelling of 1001440404430 in words is "one trillion, one billion, four hundred forty million, four hundred four thousand, four hundred thirty".