20382040020 has 24 divisors (see below), whose sum is σ = 57069712224. Its totient is φ = 5435210656.

The previous prime is 20382039989. The next prime is 20382040067. The reversal of 20382040020 is 2004028302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169850274 + ... + 169850393.

It is an arithmetic number, because the mean of its divisors is an integer number (2377904676).

Almost surely, 2^20382040020 is an apocalyptic number.

20382040020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20382040020 is an abundant number, since it is smaller than the sum of its proper divisors (36687672204).

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

20382040020 is a wasteful number, since it uses less digits than its factorization.

20382040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339700679 (or 339700677 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20382040020 its reverse (2004028302), we get a palindrome (22386068322).

The spelling of 20382040020 in words is "twenty billion, three hundred eighty-two million, forty thousand, twenty".