210431242 has 16 divisors (see below), whose sum is σ = 360933120. Its totient is φ = 90136368.

The previous prime is 210431203. The next prime is 210431261. The reversal of 210431242 is 242134012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38143 + ... + 43309.

It is an arithmetic number, because the mean of its divisors is an integer number (22558320).

Almost surely, 2^210431242 is an apocalyptic number.

210431242 is a deficient number, since it is larger than the sum of its proper divisors (150501878).

210431242 is a wasteful number, since it uses less digits than its factorization.

210431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8085.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 210431242 is about 14506.2483778543. The cubic root of 210431242 is about 594.7987851499.

Adding to 210431242 its reverse (242134012), we get a palindrome (452565254).

The spelling of 210431242 in words is "two hundred ten million, four hundred thirty-one thousand, two hundred forty-two".