2020022028 has 36 divisors (see below), whose sum is σ = 5282244240. Its totient is φ = 650121696.

The previous prime is 2020022027. The next prime is 2020022041. The reversal of 2020022028 is 8202200202.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2020022028.

It is not an unprimeable number, because it can be changed into a prime (2020022023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 966400 + ... + 968487.

Almost surely, 2^2020022028 is an apocalyptic number.

It is an amenable number.

2020022028 is an abundant number, since it is smaller than the sum of its proper divisors (3262222212).

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

2020022028 is a wasteful number, since it uses less digits than its factorization.

2020022028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934926 (or 1934921 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2020022028 is about 44944.6551661040. The cubic root of 2020022028 is about 1264.1114598542. Note that the first 3 decimals are identical.

The spelling of 2020022028 in words is "two billion, twenty million, twenty-two thousand, twenty-eight".