2020243500 has 144 divisors (see below), whose sum is σ = 6952746528. Its totient is φ = 489744000.

The previous prime is 2020243487. The next prime is 2020243507. The reversal of 2020243500 is 53420202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2020243507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29094 + ... + 69906.

It is an arithmetic number, because the mean of its divisors is an integer number (48282962).

Almost surely, 2^2020243500 is an apocalyptic number.

2020243500 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 2020243500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3476373264).

2020243500 is an abundant number, since it is smaller than the sum of its proper divisors (4932503028).

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

2020243500 is a wasteful number, since it uses less digits than its factorization.

2020243500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40849 (or 40834 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2020243500 is about 44947.1189288034. The cubic root of 2020243500 is about 1264.1576565554.

Adding to 2020243500 its reverse (53420202), we get a palindrome (2073663702).

The spelling of 2020243500 in words is "two billion, twenty million, two hundred forty-three thousand, five hundred".