2170190806 has 16 divisors (see below), whose sum is σ = 3882081024. Its totient is φ = 889643304.

The previous prime is 2170190801. The next prime is 2170190861. The reversal of 2170190806 is 6080910712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170190801) 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 7 ways as a sum of consecutive naturals, for example, 3369540 + ... + 3370183.

It is an arithmetic number, because the mean of its divisors is an integer number (242630064).

Almost surely, 2^2170190806 is an apocalyptic number.

2170190806 is a deficient number, since it is larger than the sum of its proper divisors (1711890218).

2170190806 is a wasteful number, since it uses less digits than its factorization.

2170190806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6739755.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2170190806 is about 46585.3067608232. The cubic root of 2170190806 is about 1294.6905351180.

The spelling of 2170190806 in words is "two billion, one hundred seventy million, one hundred ninety thousand, eight hundred six".