2020819444 has 48 divisors (see below), whose sum is σ = 4417459200. Its totient is φ = 788820480.

The previous prime is 2020819403. The next prime is 2020819477. The reversal of 2020819444 is 4449180202.

It is a super-2 number, since 2×2020819444² = 8167422450496938272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53719 + ... + 83230.

It is an arithmetic number, because the mean of its divisors is an integer number (92030400).

Almost surely, 2^2020819444 is an apocalyptic number.

It is an amenable number.

2020819444 is an abundant number, since it is smaller than the sum of its proper divisors (2396639756).

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

2020819444 is a wasteful number, since it uses less digits than its factorization.

2020819444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137008 (or 137006 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2020819444 is about 44953.5253789956. The cubic root of 2020819444 is about 1264.2777765375.

Adding to 2020819444 its reverse (4449180202), we get a palindrome (6469999646).

The spelling of 2020819444 in words is "two billion, twenty million, eight hundred nineteen thousand, four hundred forty-four".