2020819445 has 8 divisors (see below), whose sum is σ = 2530417536. Its totient is φ = 1546366096.

The previous prime is 2020819403. The next prime is 2020819477. The reversal of 2020819445 is 5449180202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020819445 is a prime.

It is a super-2 number, since 2×2020819445² = 8167422458580216050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8786057 + ... + 8786286.

It is an arithmetic number, because the mean of its divisors is an integer number (316302192).

Almost surely, 2^2020819445 is an apocalyptic number.

It is an amenable number.

2020819445 is a deficient number, since it is larger than the sum of its proper divisors (509598091).

2020819445 is a wasteful number, since it uses less digits than its factorization.

2020819445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17572371.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2020819445 is about 44953.5253901182. The cubic root of 2020819445 is about 1264.2777767460.

Adding to 2020819445 its reverse (5449180202), we get a palindrome (7469999647).

The spelling of 2020819445 in words is "two billion, twenty million, eight hundred nineteen thousand, four hundred forty-five".