2045449205 has 24 divisors (see below), whose sum is σ = 2526317736. Its totient is φ = 1589829120.

The previous prime is 2045449183. The next prime is 2045449213. The reversal of 2045449205 is 5029445402.

It can be written as a sum of positive squares in 12 ways, for example, as 1904362321 + 141086884 = 43639^2 + 11878^2 .

It is not a de Polignac number, because 2045449205 - 2¹⁸ = 2045187061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3336479 + ... + 3337091.

It is an arithmetic number, because the mean of its divisors is an integer number (105263239).

Almost surely, 2^2045449205 is an apocalyptic number.

It is an amenable number.

2045449205 is a deficient number, since it is larger than the sum of its proper divisors (480868531).

2045449205 is an equidigital number, since it uses as much as digits as its factorization.

2045449205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2045449205 is about 45226.6426456795. The cubic root of 2045449205 is about 1269.3933914569.

The spelling of 2045449205 in words is "two billion, forty-five million, four hundred forty-nine thousand, two hundred five".