2045348939 has 4 divisors (see below), whose sum is σ = 2057897256. Its totient is φ = 2032800624.

The previous prime is 2045348911. The next prime is 2045348941. The reversal of 2045348939 is 9398435402.

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 2045348939 - 2¹⁶ = 2045283403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2045348893 and 2045348902.

It is not an unprimeable number, because it can be changed into a prime (2045348839) 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, 6273914 + ... + 6274239.

It is an arithmetic number, because the mean of its divisors is an integer number (514474314).

Almost surely, 2^2045348939 is an apocalyptic number.

2045348939 is a deficient number, since it is larger than the sum of its proper divisors (12548317).

2045348939 is a wasteful number, since it uses less digits than its factorization.

2045348939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548316.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 2045348939 is about 45225.5341483105. The cubic root of 2045348939 is about 1269.3726496272.

The spelling of 2045348939 in words is "two billion, forty-five million, three hundred forty-eight thousand, nine hundred thirty-nine".