20385270430 has 64 divisors (see below), whose sum is σ = 44218690560. Its totient is φ = 6609959424.

The previous prime is 20385270391. The next prime is 20385270431. The reversal of 20385270430 is 3407258302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20385270431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775767 + ... + 801613.

It is an arithmetic number, because the mean of its divisors is an integer number (690917040).

Almost surely, 2^20385270430 is an apocalyptic number.

20385270430 is an abundant number, since it is smaller than the sum of its proper divisors (23833420130).

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

20385270430 is a wasteful number, since it uses less digits than its factorization.

20385270430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26473.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 20385270430 in words is "twenty billion, three hundred eighty-five million, two hundred seventy thousand, four hundred thirty".