2020022388 has 30 divisors (see below), whose sum is σ = 5280738386. Its totient is φ = 673340688.

The previous prime is 2020022387. The next prime is 2020022419. The reversal of 2020022388 is 8832200202.

It can be written as a sum of positive squares in only one way, i.e., 1951165584 + 68856804 = 44172^2 + 8298^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020022387) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3116995 + ... + 3117642.

Almost surely, 2^2020022388 is an apocalyptic number.

It is an amenable number.

2020022388 is an abundant number, since it is smaller than the sum of its proper divisors (3260715998).

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

2020022388 is a wasteful number, since it uses less digits than its factorization.

2020022388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234653 (or 6234642 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2020022388 is about 44944.6591710294. The cubic root of 2020022388 is about 1264.1115349491. Note that the first 3 decimals are identical.

The spelling of 2020022388 in words is "two billion, twenty million, twenty-two thousand, three hundred eighty-eight".