2020939091 has 8 divisors (see below), whose sum is σ = 2119737120. Its totient is φ = 1923052032.

The previous prime is 2020939087. The next prime is 2020939097. The reversal of 2020939091 is 1909390202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020939091 - 2² = 2020939087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020939097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223196 + ... + 232073.

It is an arithmetic number, because the mean of its divisors is an integer number (264967140).

Almost surely, 2^2020939091 is an apocalyptic number.

2020939091 is a deficient number, since it is larger than the sum of its proper divisors (98798029).

2020939091 is a wasteful number, since it uses less digits than its factorization.

2020939091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455485.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2020939091 is about 44954.8561448038. The cubic root of 2020939091 is about 1264.3027274814.

The spelling of 2020939091 in words is "two billion, twenty million, nine hundred thirty-nine thousand, ninety-one".