2020421320 has 32 divisors (see below), whose sum is σ = 4549804920. Its totient is φ = 807482880.

The previous prime is 2020421317. The next prime is 2020421327. The reversal of 2020421320 is 231240202.

It can be written as a sum of positive squares in 4 ways, for example, as 1733389956 + 287031364 = 41634^2 + 16942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020421294 and 2020421303.

It is not an unprimeable number, because it can be changed into a prime (2020421327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27700 + ... + 69340.

Almost surely, 2^2020421320 is an apocalyptic number.

2020421320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020421320 is an abundant number, since it is smaller than the sum of its proper divisors (2529383600).

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

2020421320 is a wasteful number, since it uses less digits than its factorization.

2020421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42865 (or 42861 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2020421320 is about 44949.0969875925. The cubic root of 2020421320 is about 1264.1947454706.

Adding to 2020421320 its reverse (231240202), we get a palindrome (2251661522).

The spelling of 2020421320 in words is "two billion, twenty million, four hundred twenty-one thousand, three hundred twenty".