2020867690 has 16 divisors (see below), whose sum is σ = 3851536392. Its totient is φ = 760797184.

The previous prime is 2020867661. The next prime is 2020867703. The reversal of 2020867690 is 967680202.

It can be written as a sum of positive squares in 4 ways, for example, as 1561751361 + 459116329 = 39519^2 + 21427^2 .

It is a super-2 number, since 2×2020867690² = 8167812440971872200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5943559 + ... + 5943898.

Almost surely, 2^2020867690 is an apocalyptic number.

2020867690 is a deficient number, since it is larger than the sum of its proper divisors (1830668702).

2020867690 is a wasteful number, since it uses less digits than its factorization.

2020867690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11887481.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2020867690 is about 44954.0619966650. The cubic root of 2020867690 is about 1264.2878377795.

The spelling of 2020867690 in words is "two billion, twenty million, eight hundred sixty-seven thousand, six hundred ninety".