2020404469 has 4 divisors (see below), whose sum is σ = 2020604544. Its totient is φ = 2020204396.

The previous prime is 2020404443. The next prime is 2020404487. The reversal of 2020404469 is 9644040202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020404469 - 2¹⁵ = 2020371701 is a prime.

It is a super-2 number, since 2×2020404469² = 8164068436710343922, which contains 22 as substring.

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 2020404469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020404409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84037 + ... + 105370.

It is an arithmetic number, because the mean of its divisors is an integer number (505151136).

Almost surely, 2^2020404469 is an apocalyptic number.

It is an amenable number.

2020404469 is a deficient number, since it is larger than the sum of its proper divisors (200075).

2020404469 is a wasteful number, since it uses less digits than its factorization.

2020404469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200074.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2020404469 is about 44948.9095418343. The cubic root of 2020404469 is about 1264.1912308563.

The spelling of 2020404469 in words is "two billion, twenty million, four hundred four thousand, four hundred sixty-nine".