2020622045 has 8 divisors (see below), whose sum is σ = 2611265496. Its totient is φ = 1492151616.

The previous prime is 2020622041. The next prime is 2020622069. The reversal of 2020622045 is 5402260202.

It can be written as a sum of positive squares in 4 ways, for example, as 72812089 + 1947809956 = 8533^2 + 44134^2 .

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 2020622045 - 2² = 2020622041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020622045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020622041) 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, 15543182 + ... + 15543311.

It is an arithmetic number, because the mean of its divisors is an integer number (326408187).

Almost surely, 2^2020622045 is an apocalyptic number.

It is an amenable number.

2020622045 is a deficient number, since it is larger than the sum of its proper divisors (590643451).

2020622045 is a wasteful number, since it uses less digits than its factorization.

2020622045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31086511.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2020622045 is about 44951.3297356152. The cubic root of 2020622045 is about 1264.2366091955.

Adding to 2020622045 its reverse (5402260202), we get a palindrome (7422882247).

The spelling of 2020622045 in words is "two billion, twenty million, six hundred twenty-two thousand, forty-five".