2020531220 has 12 divisors (see below), whose sum is σ = 4243115604. Its totient is φ = 808212480.

The previous prime is 2020531213. The next prime is 2020531273. The reversal of 2020531220 is 221350202.

It can be written as a sum of positive squares in 2 ways, for example, as 661724176 + 1358807044 = 25724^2 + 36862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50513261 + ... + 50513300.

It is an arithmetic number, because the mean of its divisors is an integer number (353592967).

Almost surely, 2^2020531220 is an apocalyptic number.

2020531220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020531220 is an abundant number, since it is smaller than the sum of its proper divisors (2222584384).

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

2020531220 is a wasteful number, since it uses less digits than its factorization.

2020531220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101026570 (or 101026568 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2020531220 is about 44950.3194649382. The cubic root of 2020531220 is about 1264.2176668421.

Adding to 2020531220 its reverse (221350202), we get a palindrome (2241881422).

The spelling of 2020531220 in words is "two billion, twenty million, five hundred thirty-one thousand, two hundred twenty".