20404434112430 has 16 divisors (see below), whose sum is σ = 36728041321440. Its totient is φ = 8161760329632.

The previous prime is 20404434112427. The next prime is 20404434112493. The reversal of 20404434112430 is 3421143440402.

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, 6841727 + ... + 9360453.

It is an arithmetic number, because the mean of its divisors is an integer number (2295502582590).

Almost surely, 2^{20404434112430} is an apocalyptic number.

20404434112430 is a deficient number, since it is larger than the sum of its proper divisors (16323607209010).

20404434112430 is a wasteful number, since it uses less digits than its factorization.

20404434112430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328843.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 20404434112430 its reverse (3421143440402), we get a palindrome (23825577552832).

The spelling of 20404434112430 in words is "twenty trillion, four hundred four billion, four hundred thirty-four million, one hundred twelve thousand, four hundred thirty".