2173888790 has 16 divisors (see below), whose sum is σ = 3917175120. Its totient is φ = 868627680.

The previous prime is 2173888789. The next prime is 2173888793. The reversal of 2173888790 is 978883712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173888793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106100 + ... + 124919.

It is an arithmetic number, because the mean of its divisors is an integer number (244823445).

Almost surely, 2^2173888790 is an apocalyptic number.

2173888790 is a deficient number, since it is larger than the sum of its proper divisors (1743286330).

2173888790 is a wasteful number, since it uses less digits than its factorization.

2173888790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231967.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 2173888790 is about 46624.9803217117. The cubic root of 2173888790 is about 1295.4254978409.

The spelling of 2173888790 in words is "two billion, one hundred seventy-three million, eight hundred eighty-eight thousand, seven hundred ninety".