2009170 has 16 divisors (see below), whose sum is σ = 3633408. Its totient is φ = 799920.

The previous prime is 2009167. The next prime is 2009171. The reversal of 2009170 is 719002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3007 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (227088).

2^2009170 is an apocalyptic number.

2009170 is a deficient number, since it is larger than the sum of its proper divisors (1624238).

2009170 is a wasteful number, since it uses less digits than its factorization.

2009170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 2009170 is about 1417.4519392205. The cubic root of 2009170 is about 126.1843693779.

The spelling of 2009170 in words is "two million, nine thousand, one hundred seventy".