2045008849 has 4 divisors (see below), whose sum is σ = 2202317236. Its totient is φ = 1887700464.

The previous prime is 2045008843. The next prime is 2045008871. The reversal of 2045008849 is 9488005402.

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 1366041600 + 678967249 = 36960^2 + 26057^2 .

It is not a de Polignac number, because 2045008849 - 2¹⁵ = 2044976081 is a prime.

It is a super-2 number, since 2×2045008849² = 8364122384976609602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045008843) 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, 78654174 + ... + 78654199.

It is an arithmetic number, because the mean of its divisors is an integer number (550579309).

Almost surely, 2^2045008849 is an apocalyptic number.

It is an amenable number.

2045008849 is a deficient number, since it is larger than the sum of its proper divisors (157308387).

2045008849 is a wasteful number, since it uses less digits than its factorization.

2045008849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157308386.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2045008849 is about 45221.7740585219. The cubic root of 2045008849 is about 1269.3022908300.

The spelling of 2045008849 in words is "two billion, forty-five million, eight thousand, eight hundred forty-nine".