2020404515 has 4 divisors (see below), whose sum is σ = 2424485424. Its totient is φ = 1616323608.

The previous prime is 2020404487. The next prime is 2020404517. The reversal of 2020404515 is 5154040202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2020404515 - 2⁸ = 2020404259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020404517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202040447 + ... + 202040456.

It is an arithmetic number, because the mean of its divisors is an integer number (606121356).

Almost surely, 2^2020404515 is an apocalyptic number.

2020404515 is a deficient number, since it is larger than the sum of its proper divisors (404080909).

2020404515 is an equidigital number, since it uses as much as digits as its factorization.

2020404515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404080908.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2020404515 is about 44948.9100535263. The cubic root of 2020404515 is about 1264.1912404505.

Adding to 2020404515 its reverse (5154040202), we get a palindrome (7174444717).

The spelling of 2020404515 in words is "two billion, twenty million, four hundred four thousand, five hundred fifteen".