2172704210 has 16 divisors (see below), whose sum is σ = 4140918936. Its totient is φ = 817959168.

The previous prime is 2172704201. The next prime is 2172704221. The reversal of 2172704210 is 124072712.

It can be written as a sum of positive squares in 4 ways, for example, as 2162901049 + 9803161 = 46507^2 + 3131^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2172704210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6390137 + ... + 6390476.

Almost surely, 2^2172704210 is an apocalyptic number.

2172704210 is a deficient number, since it is larger than the sum of its proper divisors (1968214726).

2172704210 is a wasteful number, since it uses less digits than its factorization.

2172704210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780637.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 2172704210 is about 46612.2753145564. The cubic root of 2172704210 is about 1295.1901570763.

Adding to 2172704210 its reverse (124072712), we get a palindrome (2296776922).

The spelling of 2172704210 in words is "two billion, one hundred seventy-two million, seven hundred four thousand, two hundred ten".