210343442 has 4 divisors (see below), whose sum is σ = 315515166. Its totient is φ = 105171720.

The previous prime is 210343439. The next prime is 210343451. The reversal of 210343442 is 244343012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194574601 + 15768841 = 13949^2 + 3971^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52585859 + ... + 52585862.

Almost surely, 2^210343442 is an apocalyptic number.

210343442 is a deficient number, since it is larger than the sum of its proper divisors (105171724).

210343442 is a wasteful number, since it uses less digits than its factorization.

210343442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105171723.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 210343442 is about 14503.2217800046. The cubic root of 210343442 is about 594.7160493392.

Adding to 210343442 its reverse (244343012), we get a palindrome (454686454).

The spelling of 210343442 in words is "two hundred ten million, three hundred forty-three thousand, four hundred forty-two".