210510242 has 16 divisors (see below), whose sum is σ = 325590840. Its totient is φ = 102002688.

The previous prime is 210510239. The next prime is 210510257. The reversal of 210510242 is 242015012.

It can be written as a sum of positive squares in 4 ways, for example, as 209409841 + 1100401 = 14471^2 + 1049^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210510242.

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, 13484 + ... + 24552.

Almost surely, 2^210510242 is an apocalyptic number.

210510242 is a deficient number, since it is larger than the sum of its proper divisors (115080598).

210510242 is a wasteful number, since it uses less digits than its factorization.

210510242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 210510242 is about 14508.9710868828. The cubic root of 210510242 is about 594.8732088660.

Adding to 210510242 its reverse (242015012), we get a palindrome (452525254).

The spelling of 210510242 in words is "two hundred ten million, five hundred ten thousand, two hundred forty-two".