2020040173 has 4 divisors (see below), whose sum is σ = 2021862780. Its totient is φ = 2018217568.

The previous prime is 2020040149. The next prime is 2020040201. The reversal of 2020040173 is 3710400202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157427209 + 1862612964 = 12547^2 + 43158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020040173 - 2⁹ = 2020039661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020040173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020040773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909640 + ... + 911857.

It is an arithmetic number, because the mean of its divisors is an integer number (505465695).

Almost surely, 2^2020040173 is an apocalyptic number.

It is an amenable number.

2020040173 is a deficient number, since it is larger than the sum of its proper divisors (1822607).

2020040173 is a wasteful number, since it uses less digits than its factorization.

2020040173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822606.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2020040173 is about 44944.8570250257. The cubic root of 2020040173 is about 1264.1152448350.

Adding to 2020040173 its reverse (3710400202), we get a palindrome (5730440375).

The spelling of 2020040173 in words is "two billion, twenty million, forty thousand, one hundred seventy-three".