20284620020 has 96 divisors (see below), whose sum is σ = 52336005120. Its totient is φ = 6448464000.

The previous prime is 20284620019. The next prime is 20284620061. The reversal of 20284620020 is 2002648202.

It is a super-2 number, since 2×20284620020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 43895 + ... + 206145.

It is an arithmetic number, because the mean of its divisors is an integer number (545166720).

Almost surely, 2^20284620020 is an apocalyptic number.

20284620020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20284620020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26168002560).

20284620020 is an abundant number, since it is smaller than the sum of its proper divisors (32051385100).

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

20284620020 is a wasteful number, since it uses less digits than its factorization.

20284620020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162333 (or 162331 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The spelling of 20284620020 in words is "twenty billion, two hundred eighty-four million, six hundred twenty thousand, twenty".