2020421034 has 24 divisors (see below), whose sum is σ = 4379220612. Its totient is φ = 673221120.

The previous prime is 2020421027. The next prime is 2020421089. The reversal of 2020421034 is 4301240202.

It can be written as a sum of positive squares in 2 ways, for example, as 1872725625 + 147695409 = 43275^2 + 12153^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2020420998 and 2020421016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31882 + ... + 71114.

Almost surely, 2^2020421034 is an apocalyptic number.

2020421034 is an abundant number, since it is smaller than the sum of its proper divisors (2358799578).

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

2020421034 is a wasteful number, since it uses less digits than its factorization.

2020421034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42102 (or 42099 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2020421034 is about 44949.0938062159. The cubic root of 2020421034 is about 1264.1946858197.

Adding to 2020421034 its reverse (4301240202), we get a palindrome (6321661236).

The spelling of 2020421034 in words is "two billion, twenty million, four hundred twenty-one thousand, thirty-four".