20430834384 has 40 divisors (see below), whose sum is σ = 52888093120. Its totient is φ = 6796286208.

The previous prime is 20430834377. The next prime is 20430834407. The reversal of 20430834384 is 48343803402.

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, 413629 + ... + 460380.

It is an arithmetic number, because the mean of its divisors is an integer number (1322202328).

Almost surely, 2^20430834384 is an apocalyptic number.

20430834384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20430834384 is an abundant number, since it is smaller than the sum of its proper divisors (32457258736).

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

20430834384 is a wasteful number, since it uses less digits than its factorization.

20430834384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874507 (or 874501 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 20430834384 in words is "twenty billion, four hundred thirty million, eight hundred thirty-four thousand, three hundred eighty-four".