2045385670 has 16 divisors (see below), whose sum is σ = 3683689488. Its totient is φ = 817710880.

The previous prime is 2045385647. The next prime is 2045385691. The reversal of 2045385670 is 765835402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35716 + ... + 73255.

It is an arithmetic number, because the mean of its divisors is an integer number (230230593).

Almost surely, 2^2045385670 is an apocalyptic number.

2045385670 is a deficient number, since it is larger than the sum of its proper divisors (1638303818).

2045385670 is a wasteful number, since it uses less digits than its factorization.

2045385670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110855.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2045385670 is about 45225.9402334545. The cubic root of 2045385670 is about 1269.3802481754.

The spelling of 2045385670 in words is "two billion, forty-five million, three hundred eighty-five thousand, six hundred seventy".