2045884469 has 4 divisors (see below), whose sum is σ = 2048845920. Its totient is φ = 2042923020.

The previous prime is 2045884459. The next prime is 2045884471. The reversal of 2045884469 is 9644885402.

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 2045884469 - 2⁴ = 2045884453 is a prime.

It is a super-2 number, since 2×2045884469² = 8371286520990823922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045884459) 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, 1479689 + ... + 1481070.

It is an arithmetic number, because the mean of its divisors is an integer number (512211480).

Almost surely, 2^2045884469 is an apocalyptic number.

It is an amenable number.

2045884469 is a deficient number, since it is larger than the sum of its proper divisors (2961451).

2045884469 is an equidigital number, since it uses as much as digits as its factorization.

2045884469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961450.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The square root of 2045884469 is about 45231.4544205689. The cubic root of 2045884469 is about 1269.4834258052.

The spelling of 2045884469 in words is "two billion, forty-five million, eight hundred eighty-four thousand, four hundred sixty-nine".