20430040034430 has 96 divisors (see below), whose sum is σ = 60214854903840. Its totient is φ = 4764252245760.

The previous prime is 20430040034353. The next prime is 20430040034461. The reversal of 20430040034430 is 3443004003402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20430040034394 and 20430040034403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459492841 + ... + 459537300.

It is an arithmetic number, because the mean of its divisors is an integer number (627238071915).

Almost surely, 2^{20430040034430} is an apocalyptic number.

20430040034430 is an abundant number, since it is smaller than the sum of its proper divisors (39784814869410).

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

20430040034430 is a wasteful number, since it uses less digits than its factorization.

20430040034430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919030186 (or 919030183 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20430040034430 its reverse (3443004003402), we get a palindrome (23873044037832).

The spelling of 20430040034430 in words is "twenty trillion, four hundred thirty billion, forty million, thirty-four thousand, four hundred thirty".