2020909385 has 16 divisors (see below), whose sum is σ = 2646777600. Its totient is φ = 1469072640.

The previous prime is 2020909381. The next prime is 2020909403. The reversal of 2020909385 is 5839090202.

It is not a de Polignac number, because 2020909385 - 2² = 2020909381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2020909381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132641 + ... + 147089.

It is an arithmetic number, because the mean of its divisors is an integer number (165423600).

Almost surely, 2^2020909385 is an apocalyptic number.

It is an amenable number.

2020909385 is a deficient number, since it is larger than the sum of its proper divisors (625868215).

2020909385 is a wasteful number, since it uses less digits than its factorization.

2020909385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17008.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2020909385 is about 44954.5257454686. The cubic root of 2020909385 is about 1264.2965327440.

Adding to 2020909385 its reverse (5839090202), we get a palindrome (7859999587).

The spelling of 2020909385 in words is "two billion, twenty million, nine hundred nine thousand, three hundred eighty-five".