2005393870 has 16 divisors (see below), whose sum is σ = 3613822128. Its totient is φ = 801243520.

The previous prime is 2005393847. The next prime is 2005393879. The reversal of 2005393870 is 783935002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005393879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105004 + ... + 122623.

It is an arithmetic number, because the mean of its divisors is an integer number (225863883).

Almost surely, 2^2005393870 is an apocalyptic number.

2005393870 is a deficient number, since it is larger than the sum of its proper divisors (1608428258).

2005393870 is a wasteful number, since it uses less digits than its factorization.

2005393870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228515.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2005393870 is about 44781.6242447725. The cubic root of 2005393870 is about 1261.0526749229.

The spelling of 2005393870 in words is "two billion, five million, three hundred ninety-three thousand, eight hundred seventy".