2120170 has 32 divisors (see below), whose sum is σ = 4209408. Its totient is φ = 763968.

The previous prime is 2120147. The next prime is 2120171. The reversal of 2120170 is 710212.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2120170.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5937 + ... + 6283.

It is an arithmetic number, because the mean of its divisors is an integer number (131544).

2^2120170 is an apocalyptic number.

2120170 is a deficient number, since it is larger than the sum of its proper divisors (2089238).

2120170 is a wasteful number, since it uses less digits than its factorization.

2120170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 2120170 is about 1456.0803549255. The cubic root of 2120170 is about 128.4665994433.

Adding to 2120170 its reverse (710212), we get a palindrome (2830382).

The spelling of 2120170 in words is "two million, one hundred twenty thousand, one hundred seventy".