2170420170 has 32 divisors (see below), whose sum is σ = 5210239680. Its totient is φ = 578641920.

The previous prime is 2170420151. The next prime is 2170420193. The reversal of 2170420170 is 710240712.

It is a self number, because there is not a number n which added to its sum of digits gives 2170420170.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225721 + ... + 235139.

It is an arithmetic number, because the mean of its divisors is an integer number (162819990).

Almost surely, 2^2170420170 is an apocalyptic number.

2170420170 is an abundant number, since it is smaller than the sum of its proper divisors (3039819510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2170420170 is a wasteful number, since it uses less digits than its factorization.

2170420170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17110.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 2170420170 is about 46587.7684591138. The cubic root of 2170420170 is about 1294.7361447695.

Adding to 2170420170 its reverse (710240712), we get a palindrome (2880660882).

The spelling of 2170420170 in words is "two billion, one hundred seventy million, four hundred twenty thousand, one hundred seventy".